French Guiana two senators to the French Senate. The Guianese Socialist Party dominated politics in French Guiana until 2010. A chronic issue affecting French Guiana is the influx of illegal immigrants and clandestine gold prospectors from Brazil and Suriname. The border between the department and Suriname, the Maroni River, flows through rain forest and is difficult for the Gendarmerie and the French Foreign Legion to patrol. There have been several phases launched by the French government to combat illegal gold mining in French Guiana, beginning with Operation Anaconda beginning in 2003, followed by Operation Harpie in 2008, 2009 and Operation Harpie Reinforce
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