The French Armed Forces encompass the French Army, the French Navy, the French Air Force, and the National Gendarmerie of France. The President of the Republic heads the armed forces, with the title "chef des armées" ("chief of the armies"). The President is the supreme authority for military matters and is the sole official who can order a nuclear strike. According to SIPRI, as of 2014 France maintains the 5th largest defence budget in the world.