{"id":35317,"date":"2026-11-06T11:40:19","date_gmt":"2026-11-06T11:40:19","guid":{"rendered":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/?p=35317"},"modified":"2026-11-06T11:45:39","modified_gmt":"2026-11-06T11:45:39","slug":"treaties-in-international-law-meaning-essential-elements-and-types","status":"publish","type":"post","link":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/","title":{"rendered":"Treaties in International Law: Meaning, Essential Elements, and Types"},"content":{"rendered":"\n<h2 id=\"h-introduction\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Treaties are one of the most important sources of international law.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0c0c0c;color:#0c0c0c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0c0c0c;color:#0c0c0c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Introduction\" >Introduction<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#What_They_Are\" >What They Are<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#What_They_Do\" >What They Do<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Why_They_Matter\" >Why They Matter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Meaning_and_Definition_of_a_Treaty\" >Meaning and Definition of a Treaty<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Official_Definition\" >Official Definition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#In_Simple_Words\" >In Simple Words<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Famous_Examples\" >Famous Examples<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Essential_Elements_of_a_Treaty\" >Essential Elements of a Treaty<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Types_or_Classes_of_Treaties\" >Types or Classes of Treaties<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#A_Based_on_the_Number_of_Parties\" >A. Based on the Number of Parties<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Bilateral_Treaties\" >Bilateral Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Multilateral_Treaties\" >Multilateral Treaties<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#B_Based_on_Nature_and_Purpose\" >B. Based on Nature and Purpose<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Law-Making_Treaties\" >Law-Making Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Treaty_Contracts\" >Treaty Contracts<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#C_Based_on_Participation\" >C. Based on Participation<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Open_Treaties\" >Open Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Closed_Treaties\" >Closed Treaties<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#D_Based_on_Method_of_Formation\" >D. Based on Method of Formation<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Formal_Treaties\" >Formal Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Simplified_Executive_Agreements\" >Simplified (Executive) Agreements<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#E_Based_on_Duration\" >E. Based on Duration<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Fixed-Term_Treaties\" >Fixed-Term Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Indefinite-Term_Treaties\" >Indefinite-Term Treaties<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#F_Based_on_Subject_Matter\" >F. Based on Subject Matter<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Political_Treaties\" >Political Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Commercial_Trade_Treaties\" >Commercial \/ Trade Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Military_Defence_Treaties\" >Military \/ Defence Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Humanitarian_Treaties\" >Humanitarian Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Territorial_Treaties\" >Territorial Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Environmental_Treaties\" >Environmental Treaties<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Important_Principles_of_Treaty_Law\" >Important Principles of Treaty Law<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Importance_of_Treaties\" >Importance of Treaties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h3 id=\"h-what-they-are\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_They_Are\"><\/span>What They Are<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Written agreements made between two or more countries (states) or between countries and international organisations.<\/p>\n\n\n\n<h3 id=\"h-what-they-do\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_They_Do\"><\/span>What They Do<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">They create legal rights and duties for the countries that sign them.<\/p>\n\n\n\n<h3 id=\"h-why-they-matter\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_They_Matter\"><\/span>Why They Matter<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">They help maintain peace, friendly relations, cooperation, and understanding among nations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The rules for treaties are mainly set by the Vienna Convention on the Law of Treaties, 1969 (which came into force in 1980).<\/p>\n\n\n\n<h2 id=\"h-meaning-and-definition-of-a-treaty\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Meaning_and_Definition_of_a_Treaty\"><\/span>Meaning and Definition of a Treaty<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 id=\"h-official-definition\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Official_Definition\"><\/span>Official Definition<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Article 2(1)(a) of the Vienna Convention, 1969:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">A treaty is an international agreement made between states in written form and governed by international law, whether contained in one document or in two or more related documents, no matter what name it is given.<\/p>\n<\/blockquote>\n\n\n\n<h3 id=\"h-in-simple-words\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"In_Simple_Words\"><\/span>In Simple Words<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A treaty is a legal contract between countries that creates binding rules under international law.<\/p>\n\n\n\n<h3 id=\"h-famous-examples\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Famous_Examples\"><\/span>Famous Examples<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>United Nations (UN) Charter, 1945<\/li>\n\n\n\n<li>Geneva Conventions, 1949<\/li>\n\n\n\n<li>Vienna Convention on Diplomatic Relations, 1961<\/li>\n\n\n\n<li>Paris Climate Agreement, 2015<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-essential-elements-of-a-treaty\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Essential_Elements_of_a_Treaty\"><\/span>Essential Elements of a Treaty<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For an agreement to be a valid treaty, it must have these 7 elements:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Agreement:<\/strong> Two or more parties must agree to the terms.<\/li>\n\n\n\n<li><strong>Proper Parties:<\/strong> The parties must be states or international organisations with the legal right to make treaties.<\/li>\n\n\n\n<li><strong>Written Form:<\/strong> The agreement must be written down.<\/li>\n\n\n\n<li><strong>Legal Intention:<\/strong> The parties must intend to create real legal rights and duties.<\/li>\n\n\n\n<li><strong>Governed by International Law:<\/strong> The agreement follows International Law, not local national laws.<\/li>\n\n\n\n<li><strong>Free Consent:<\/strong> All parties must agree freely without force or cheating.<\/li>\n\n\n\n<li><strong>Binding Nature:<\/strong> The agreement creates real legal duties that all signed parties must follow.<\/li>\n<\/ol>\n\n\n\n<h2 id=\"h-types-or-classes-of-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Types_or_Classes_of_Treaties\"><\/span>Types or Classes of Treaties<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Treaties can be classified into different categories based on the number of parties, their nature and purpose, participation, method of formation, duration, and subject matter.<\/p>\n\n\n\n<h3 id=\"h-a-based-on-the-number-of-parties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_Based_on_the_Number_of_Parties\"><\/span>A. Based on the Number of Parties<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 id=\"h-bilateral-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bilateral_Treaties\"><\/span>Bilateral Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Made between two. They cover matters of common interest to those two nations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> A trade deal between India and Nepal.<\/p>\n\n\n\n<h4 id=\"h-multilateral-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Multilateral_Treaties\"><\/span>Multilateral Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Made between three or more. They cover issues that affect many nations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Examples:<\/strong> UN Charter (1945), Geneva Conventions (1949).<\/p>\n\n\n\n<h3 id=\"h-b-based-on-nature-and-purpose\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"B_Based_on_Nature_and_Purpose\"><\/span>B. Based on Nature and Purpose<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 id=\"h-law-making-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Law-Making_Treaties\"><\/span>Law-Making Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Create general rules and legal principles for many nations to follow.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Examples:<\/strong> the Geneva Conventions (1949) and the Vienna Convention on Diplomatic Relations (1961).<\/p>\n\n\n\n<h4 id=\"h-treaty-contracts\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Treaty_Contracts\"><\/span>Treaty Contracts<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Simple agreements between two or a few countries to settle a specific practical issue (like a normal contract).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> Two countries agreeing to build a shared bridge.<\/p>\n\n\n\n<h3 id=\"h-c-based-on-participation\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"C_Based_on_Participation\"><\/span>C. Based on Participation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 id=\"h-open-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Open_Treaties\"><\/span>Open Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Allow other countries to join later if they meet the terms.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> The UN Charter allows eligible nations to join the UN.<\/p>\n\n\n\n<h4 id=\"h-closed-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Closed_Treaties\"><\/span>Closed Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Do not allow outside countries to join. Only the original members can participate.<\/p>\n\n\n\n<h3 id=\"h-d-based-on-method-of-formation\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"D_Based_on_Method_of_Formation\"><\/span>D. Based on Method of Formation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 id=\"h-formal-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formal_Treaties\"><\/span>Formal Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Created through a complete formal process: negotiation, signing, official approval (ratification), and exchanging legal papers.<\/p>\n\n\n\n<h4 id=\"h-simplified-executive-agreements\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Simplified_Executive_Agreements\"><\/span>Simplified (Executive) Agreements<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Created through an easier, faster process. They become active right after signing without needing formal ratification.<\/p>\n\n\n\n<h3 id=\"h-e-based-on-duration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"E_Based_on_Duration\"><\/span>E. Based on Duration<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 id=\"h-fixed-term-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fixed-Term_Treaties\"><\/span>Fixed-Term Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Stay active for a specific, set period of time written in the deal.<\/p>\n\n\n\n<h4 id=\"h-indefinite-term-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Indefinite-Term_Treaties\"><\/span>Indefinite-Term Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Stay active indefinitely until parties decide to end them according to law.<\/p>\n\n\n\n<h3 id=\"h-f-based-on-subject-matter\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"F_Based_on_Subject_Matter\"><\/span>F. Based on Subject Matter<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 id=\"h-political-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Political_Treaties\"><\/span>Political Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Deal with peace, friendship, security, and diplomatic relations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> A friendship treaty between two nations.<\/p>\n\n\n\n<h4 id=\"h-commercial-trade-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Commercial_Trade_Treaties\"><\/span>Commercial \/ Trade Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Deal with business, trade, import\/export, and investment.<\/p>\n\n\n\n<h4 id=\"h-military-defence-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Military_Defence_Treaties\"><\/span>Military \/ Defence Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Deal with joint military cooperation and mutual defence.<\/p>\n\n\n\n<h4 id=\"h-humanitarian-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Humanitarian_Treaties\"><\/span>Humanitarian Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Protect human rights and civilian dignity, especially during war.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> Geneva Conventions (1949).<\/p>\n\n\n\n<h4 id=\"h-territorial-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Territorial_Treaties\"><\/span>Territorial Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Settle land borders and territorial disputes.<\/p>\n\n\n\n<h4 id=\"h-environmental-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Environmental_Treaties\"><\/span>Environmental Treaties<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Protect nature, control pollution, and fight climate change.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> Paris Climate Agreement (2015).<\/p>\n\n\n\n<h2 id=\"h-important-principles-of-treaty-law\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Important_Principles_of_Treaty_Law\"><\/span>Important Principles of Treaty Law<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The following principles form an important part of International Treaty Law:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Principle<\/th><th>Meaning in Simple Terms<\/th><\/tr><\/thead><tbody><tr><td><strong>Pacta Sunt Servanda<\/strong><\/td><td>&#8220;Agreements must be kept.&#8221; Treaties in force bind the parties and must be followed in good faith.<\/td><\/tr><tr><td><strong>Free Consent<\/strong><\/td><td>Consent must be given freely. If forced or trickery is used, the treaty is invalid.<\/td><\/tr><tr><td><strong>Good Faith<\/strong><\/td><td>All parties must carry out their duties honestly and fairly.<\/td><\/tr><tr><td><strong>Rebus Sic Stantibus<\/strong><\/td><td>If fundamental, unforeseen circumstances change completely, a treaty may be ended or paused.<\/td><\/tr><tr><td><strong>Non-Retroactivity<\/strong><\/td><td>Treaties do not apply to events that happened before the treaty became official.<\/td><\/tr><tr><td><strong>Third-State Rule<\/strong><\/td><td>A treaty cannot create rules or duties for an outside country without its permission.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-importance-of-treaties\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Importance_of_Treaties\"><\/span>Importance of Treaties<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Treaties are vital because they:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Maintain world peace and friendly relations.<\/li>\n\n\n\n<li>Build global cooperation.<\/li>\n\n\n\n<li>Manage international trade and economy.<\/li>\n\n\n\n<li>Protect human rights and freedoms.<\/li>\n\n\n\n<li>Solve disputes peacefully.<\/li>\n\n\n\n<li>Protect the global environment.<\/li>\n\n\n\n<li>Set up major international organisations.<\/li>\n\n\n\n<li>Create clear, common rules for all nations.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Treaties form the core of international law. They establish legal rights and obligations between nations to promote peace, safety, and cooperation. Whether bilateral or multilateral, open or closed, political or environmental, treaties structure how countries interact. The Vienna Convention on the Law of Treaties (1969) provides the master framework for writing, understanding, and enforcing these crucial agreements.<\/p>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/interpretation-of-treaties-understanding-the-meaning-and-scope-of-international-agreements\/\">Interpretation of Treaties: Understanding the Meaning and Scope of International Agreements<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/international-human-rights-treaties-and-also-regional-systems-of-human-rights\/\">International Human Rights Treaties and also Regional Systems of Human Rights<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/formation-conclusion-and-creation-of-treaties-reservation-ratification-and-importance-of-treaties\/\">Formation, Conclusion and Creation of Treaties: Reservation, Ratification and Importance of Treaties<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/sources-of-international-law-understanding-the-origin-of-rules-governing-relations-among-nations\/\">Sources of International Law: Understanding the Origin of Rules Governing Relations Among Nations<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/relationship-between-international-law-and-municipal-law-a-comparative-study\/\">Relationship Between International Law and Municipal Law: A Comparative Study<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Treaties are one of the most important sources of international law. What They Are Written agreements made between two or more countries (states) or between countries and international organisations. What They Do They create legal rights and duties for the countries that sign them. Why They Matter They help maintain peace, friendly relations, cooperation,<\/p>\n","protected":false},"author":49,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_forum_subforum_count":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"two_page_speed":[],"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_memberships_contains_paid_content":false,"_joinchat":[],"footnotes":""},"categories":[80],"tags":[355],"class_list":["post-35317","post","type-post","status-publish","format-standard","category-international-law","tag-international-law"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Treaties in International Law: Meaning, Essential Elements, and Types - Legal Service India - Articles<\/title>\n<meta name=\"description\" content=\"Treaties in International Law: Explore their meaning, definition, essential elements, types and principles under the Vienna Convention 1969.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Treaties in International Law: Meaning, Essential Elements, and Types\" \/>\n<meta property=\"og:description\" content=\"Treaties in International Law: Explore their meaning, definition, essential elements, types and principles under the Vienna Convention 1969.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/treaties-in-international-law-meaning-essential-elements-and-types\/\" \/>\n<meta property=\"og:site_name\" content=\"Legal Service India - Articles\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/legalservicesind\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-06T11:40:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-06T11:45:39+00:00\" \/>\n<meta name=\"author\" content=\"Md. 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He has held several senior positions in the West Bengal Police, Kolkata Police, and Barrackpore Police Commissionerate, and served as Special IG and IGP of Correctional Services, West Bengal. \ud83c\udf93 Academic Excellence: He holds degrees in Science, Arts, Law, and Business Administration, along with multiple postgraduate diplomas in specialised fields, including Human Rights, Psychology, Public Administration, and Disaster Management. He has also undergone specialised training at SVPNPA, IIM Ahmedabad, and in Singapore. \ud83d\udcda Author &amp; Research Scholar: He has authored Police Investigation &amp; Allied Matters and Alternative Dispute Resolution: Evolving Trends and Innovations. With over 1,000 articles to his credit, his research and writings cover law, policing, criminal justice, prison administration, politics, and international affairs. His contributions have appeared in reputed police and research journals. \ud83d\uddf3\ufe0f Election Management &amp; Leadership: As an Election Commission of India observer, he has contributed to election management across several Indian states. He has also chaired and served on recruitment boards for Kolkata Police and West Bengal Police. 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Imran Wahab","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-content\/uploads\/avatars\/49\/1777837060-bpfull.jpg","url":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-content\/uploads\/avatars\/49\/1777837060-bpfull.jpg","contentUrl":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-content\/uploads\/avatars\/49\/1777837060-bpfull.jpg","caption":"Md. Imran Wahab"},"description":"\ud83d\udc6e Md. Imran Wahab, IPS Inspector General of Police (IGP), Provisioning, West Bengal Md. Imran Wahab is a distinguished Indian Police Service officer with extensive experience in law enforcement, administration, prison management, and public service. He has held several senior positions in the West Bengal Police, Kolkata Police, and Barrackpore Police Commissionerate, and served as Special IG and IGP of Correctional Services, West Bengal. \ud83c\udf93 Academic Excellence: He holds degrees in Science, Arts, Law, and Business Administration, along with multiple postgraduate diplomas in specialised fields, including Human Rights, Psychology, Public Administration, and Disaster Management. He has also undergone specialised training at SVPNPA, IIM Ahmedabad, and in Singapore. \ud83d\udcda Author &amp; Research Scholar: He has authored Police Investigation &amp; Allied Matters and Alternative Dispute Resolution: Evolving Trends and Innovations. With over 1,000 articles to his credit, his research and writings cover law, policing, criminal justice, prison administration, politics, and international affairs. His contributions have appeared in reputed police and research journals. \ud83d\uddf3\ufe0f Election Management &amp; Leadership: As an Election Commission of India observer, he has contributed to election management across several Indian states. He has also chaired and served on recruitment boards for Kolkata Police and West Bengal Police. His professional interests span law, governance, correctional administration, international affairs, and management, reflecting a sustained commitment to institutional development, knowledge sharing, and public service.","url":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/author\/md-imranwahab\/"}]}},"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts\/35317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/users\/49"}],"replies":[{"embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/comments?post=35317"}],"version-history":[{"count":4,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts\/35317\/revisions"}],"predecessor-version":[{"id":35604,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts\/35317\/revisions\/35604"}],"wp:attachment":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/media?parent=35317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/categories?post=35317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/tags?post=35317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}