Operation Atalanta, formally European Union Naval Force Somalia, is an ongoing counter-piracy military operation at sea off the Horn of Africa and in the Western Indian Ocean, that is the first naval operation conducted by the European Union (EU), in support of United Nations resolutions 1814, 1816, 1838, and 1846 adopted in 2008 by the United Nations Security Council. Since 29 March 2019, the operational headquarters is located at Naval Station Rota in Spain, having moved from London as a result of the British withdrawal from the EU.