The Serbian Armed Forces are subordinate to the Ministry of Defence, and are composed of the Army and the Air Force. Although a landlocked country, Serbia operates a River Flotilla which patrols on the Danube, Sava, and Tisza rivers. The Serbian Chief of the General Staff reports to the Defence Minister. The Chief of Staff is appointed by the President, who is the Commander-in-chief. , Serbian defence budget amounts to $804 million.