The end of the preamble and the beginning of the agreement itself are often indicated by the words “agreed as follows”. an agreement between two or more countries or persons conferring power or influence on them Where a State limits its contractual obligations by reservations, other States Parties may accept, contradict or object to such reservations and oppose them. If the State accepts it (or does not act at all), both the reserving State and the accepting State are exempt from the reserved legal obligation with regard to their legal obligations (acceptance of the reservation does not alter the legal obligations of the reserving State towards the other contracting parties). If the State objects, the parts of the contract concerned by the reservation are totally cancelled and no longer create legal obligations for the reserving and redeeming State, again only with regard to reciprocals. Finally, if the State objects and opposes them, there is no legal obligation between those two States parties. The opposing and opposing State essentially refuses to recognize that the reserving State is a party.  No one who is a party may impose on the other contracting parties his particular interpretation of the treaty. However, the agreement may be implied if the other parties do not expressly object to this initial unilateral interpretation, in particular if that State has respected its view of the treaty without recourse. The agreement of all parties to a given interpretation has the legal effect of adding an additional clause to the treaty – commonly referred to as “authentic interpretation”. International agreements are formal agreements or commitments between two or more countries.
An agreement between two countries is called “bilateral”, while an agreement between several countries is “multilateral”. Countries bound by an international agreement are generally referred to as “States Parties”. The separation between the two is often unclear and is often politicized by disagreement within a government over a treaty, as a non-self-executive treaty cannot be implemented without the correct modification of national law. Where a treaty requires implementing laws, a State cannot fulfil its obligations by not adopting the necessary national laws by its legislator. A country that concludes an agreement with another country, which it will cooperate to help each other, especially in a war A multilateral treaty is concluded between several countries that establishes rights and duties between each party and any other party.  Multilateral treaties can be regional or involve states from around the world.  “Mutual guarantee” contracts are international treaties, for example. B the Treaty of Locarno, which guarantees each signatory an attack by another.
 In international law and international relations, a protocol is generally an international treaty or agreement that complements an earlier treaty or international agreement. A protocol may amend the previous contract or add additional provisions. The parties to the previous agreement are not obliged to adopt the protocol. This is sometimes clearer by referring to it as an “optional protocol”, especially when many parties to the first agreement do not support the protocol. Another situation may arise if one party wishes to create an obligation under international law, but the other party does not. This factor has been at work in the discussions between North Korea and the United States on security assurances and the proliferation of nuclear weapons. .