a formal agreement between the governments of different countries on how they should behave towards each other or towards the people of their country, as well as an official written agreement between two or more countries. When heads of state or government negotiate a treaty, they discuss it before reaching an agreement; and when they ratify a treaty, they give it their formal consent, usually through the signing or coordination of an agreement between two or more countries or persons that empowers them or influences a number of international agreements, describes how people should be treated when they are trapped in a war, bilateral agreement or bilateral activity is an agreement or activity that involves two or two groups or two countries if the withdrawal of a contracting state is a success. their obligations under this treaty are considered terminated and the withdrawal of part of a bilateral treaty terminates the treaty. When a state withdraws from a multilateral treaty, it remains in force among the other parties, unless it is interpreted differently, as has been agreed among the other States Parties. [Citation required] International courts and arbitrators are often called upon to resolve key disputes over interpretations of the contract. In order to determine its importance, these judicial bodies can examine for themselves the preparatory work for the negotiation and development of the treaty as well as the final contract signed. the idea that national governments have a more important role in international relations than more permanent organizations such as the public services of a country that has an agreement with another country, that they collaborate with each other, especially in a war The end of the preamble and the beginning of the actual agreement is often referred to by the words “agreed as follows”. There are several reasons why an otherwise valid and agreed treaty can be rejected as a binding international convention, most of which pose problems related to contract formation. [Citation required] For example, the Japan-Korea treaties of 1905, 1907 and 1910, which ended in series, were protested;  and they were declared “null and void” in the 1965 Treaty on Fundamental Relations between Japan and the Republic of Korea.  At present, the likelihood of international agreements being implemented by executive agreements is ten times higher. Despite the relative simplification of executive agreements, the President still often chooses to continue the formal process of concluding an executive agreement in order to gain congressional support on issues that require Congress to pass appropriate enforcement laws or means, as well as agreements that impose complex long-term legal obligations on the United States.
For example, the agreement of the United States, Iran and other countries is not a treaty. A contract is an official and explicit written agreement that states use to engage legally.  A treaty is an official document that expresses agreement in words; It is also the objective result of a solemn event that recognizes the parties and their defined relationships.