The Italian Armed Forces (italian: Forze armate italiane) encompass the Italian Army, the Italian Navy and the Italian Air Force. A fourth branch of the armed forces, known as the Carabinieri, take on the role as the nation's military police and are also involved in missions and operations abroad as a combat force. Despite not being a branch of the armed forces, the Guardia di Finanza is part of the military and operates a large fleet of ships, aircraft and helicopters, enabling it to patrol Italy's waters and to eventually participate in warfare scenarios. These five forces have military status and are all organized along military lines, comprising a total of 350,000 men and women with the official status of active military personnel. The President of the Italian Republic heads the armed forces as the President of the Supreme Council of Defence established by article 87 of the Constitution of Italy. According to article 78, the Parliament has the authority to declare a state of war and vest the necessary powers in the Government.