International agreements are formal agreements or commitments between two or more countries. An agreement between two countries is described as “bilateral,” while an agreement between several countries is “multilateral.” Countries bound by countries bound by an international convention are generally referred to as “Parties.” “treaty,” an international agreement concluded in writing between states and governed by international law, whether inscribed in a single act or in two or more related acts, regardless of its particular name. Vienna Convention on Treaty Law, May 23, 1969, art. 2, par. 1) a), 1155 U.N.T.S. 331. Under U.S. law, a treaty is an agreement reached “by the Council and the approval of the Senate” pursuant to Article II, Section 2, of Clause 2 of the Constitution. To be considered a contract under U.S. law, the document must go through a second set of steps during which it is approved by the Senate. If a contract does not contain provisions for other agreements or measures, only the text of the treaty is legally binding. In general, an amendment to the Treaty only commits the States that have ratified it and the agreements reached at review conferences, summits or meetings of the States Parties are not legally binding. The Charter of the United Nations is an example of a treaty that contains provisions for other binding agreements.

By signing and ratifying the Charter, countries have agreed to be legally bound by resolutions adopted by UN bodies such as the General Assembly and the Security Council. Therefore, UN resolutions are legally binding on UN member states and no signature or ratification is required. Under international law, a treaty is a legally binding agreement between states (countries). A treaty can be called a convention, protocol, pact, agreement, etc. It is the content of the agreement, not its name, that makes it a treaty. Thus, the Geneva Protocol and the Biological Weapons Convention are the two treaties, although neither treaty in its name. Under U.S. law, a treaty is a legally binding agreement between countries that requires ratification and “consultation and approval” of the Senate. All other agreements (internationally treated) are called executive agreements, but are nevertheless legally binding on the United States under international law. International treaties are the most common means of establishing international rules or standards that states and other actors in the international community must comply with.

Their importance has greatly increased in the context of modern international law. The quality of the application of international law has often been called into question, which has been resolved by the increased treaty process. Moreover, the universality of human rights through international treaties can be seen as an achievement. International law holds that nothing can be done without or against the will of a sovereign state. International contract law in this sense can also be cited as a meeting point for the need to assume international obligations. This document therefore essentially emphasizes the characteristics and importance of international treaties from the point of view of international law. In addition, it was stated that the issue of reserves was becoming less important in the contracting process because it isolates the state from the global arena. International agreements that enter into force on a different constitutional basis from that of the Council and Senate approval are “non-treaty international agreements” and are often referred to as “executive agreements.” Congress generally requires notification when such an agreement is reached. The IHR (2005) is an international agreement between 194 States Parties and the World Health Organization on surveillance, sunshine and response to all events that could pose a threat to international public health.