Currently, the likelihood of international agreements being implemented by an executive agreement 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. 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. During the press conference, he also stated that the agreement process was innovative, not least because it involved civil society as a whole, i.e. all public interest groups. It also pointed out that this agreement contained a very important article, which no other previous treaty has specifically included concerning the protection of human rights defenders in environmental issues. 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.
 The historic regional agreement, the first environmental agreement in Latin America and the Caribbean and the only one of its kind in the world, from the United Nations Conference on Sustainable Development (Rio-20), will be available to each state that wishes to do so for the subsequent signing. Ratification, acceptance or approval of the agreement may take place after the signing; 11 state parties must do so to enter into force.