Union of South American Nations Nelson Jobim, said in April 2008 that the Council would be formed after the "political" decision of the presidents who participated in the launch of the Union of South American Nations (UNASUR) on 23 May 2008. On 15 December 2008, at the extraordinary UNASUR summit, the creation of the South American Defense Council was finally approved. The defense ministers of Argentina, Brazil, Uruguay, Paraguay, Bolivia, Colombia, Ecuador, Peru, Chile, Guyana, Suriname and Venezuela. The Defense Council is responsible for developing joint defense policies, promoting the exchange of personnel among the Armed Forces of each country, conducting joint military exercises, participating
Suriname the Atlantic coast. The southernmost borders with French Guiana and Guyana are disputed by these countries along the Marowijne and Corantijn rivers, respectively, while a part of the disputed maritime boundary with Guyana was arbitrated by a tribunal convened under the rules set out in of the United Nations Convention on the Law of the Sea on 20 September 2007. Lying 2 to 5 degrees north of the equator, Suriname has a very hot and wet tropical climate, and temperatures do not vary much throughout the year. Average relative humidity is between 80% and 90%. Its average temperature ranges from