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 discussions between North Korea and the United States on security assurances and nuclear proliferation. International tribunals and arbitrators are often asked to settle important disputes over contractual interpretations. In order to identify the meaning in the context, these judicial bodies may themselves examine the preparatory work for the negotiation and elaboration of the treaty as well as the final contract signed. The Australia Group (AG) is an informal forum of countries which, by harmonising export controls, aims to ensure that exports do not contribute to the development of chemical or biological weapons. Participants in the Australian group, by coordinating export controls, assist countries in meeting their obligations under the Chemical Weapons Convention and the Biological and Toxin Weapons Convention to the full extent possible. an agreement between two or more countries or persons that confers power or influence on them The IGV (2005) is an international agreement between 194 States Parties and the World Health Organization to monitor, report on and respond to events that may pose a threat to international public health. The objective of the IGV (2005) is to prevent, protect, control, control and respond to the spread of diseases at the international level in a manner that is appropriate and limited to risks to public health and avoids unnecessary interference in international transport and trade. (International Health Regulations, Article 2). For more information, see the RSI fact sheets.
A multilateral treaty is concluded between several countries that establishes rights and obligations 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.  Unless a contract contains provisions concerning other agreements or measures, only the text of the treaty is legally binding. Generally speaking, a treaty amendment is binding only on States that have ratified the amendment and agreements reached at review conferences, summits or meetings of States parties are political, but not legally binding.