The Romanian Armed Forces consist of land, air, and naval forces led by a Commander-in-chief under the supervision of the Ministry of National Defence, and by the president as the Supreme Commander during wartime. The Armed Forces consist of approximately 15,000 civilians and 75,000 military personnel—45,800 for land, 13,250 for air, 6,800 for naval forces, and 8,800 in other fields. Total defence spending in 2007 accounted for 2.05% of total national GDP, or approximately US$2.9 billion, with a total of $11 billion spent between 2006 and 2011 for modernization and acquisition of new equipment.