Service branches Army The Royal Saudi Land Forces are composed of three armored brigades, five mechanized brigades, one airborne brigade, one Royal Guard brigade, and eight artillery battalions. The army also has one aviation command with two aviation brigades. The army's main equipment consists of a combination of French- and U.S.-made armored vehicles: 315 M–1A2 Abrams, 290 AMX–30, and 450 M60A3 main battle tanks; 300 reconnaissance vehicles; 570+ AMX–10P and 400 M–2 Bradley armored infantry fighting vehicles; 3,000+ M113 and 100 Al-Fahd armored personnel carriers, produced in Saudi Arabia; 200+ towed artillery pieces; 110 self-propelled artillery pieces; 60 multiple rocket launchers; 400 mortars; 10 surface-to-surface missiles; about 2,000 antitank guided weapons; about 200 rocket launchers; 450 recoilless launchers; 12 attack helicopters; 50+ transport helicopters; and 1,000 surface-to-air missiles. In 1996 Saudi Arabia had military cities in the northeast, the King Khalid Military City, at Tabuk, at Dharhran, and at Abha in the southwest. There was a 1996 report that construction of a military city at Jizan, orientated toward Yemen, had begun with Defense Minister Prince Sultan pouring the first concrete on 8 May 1996. The Library of Congress Country Study for Saudi Arabia, issued in 1992, noted that "[t]he army has been chronically under strength, in the case of some units by an estimated 30 to 50 percent. These shortages have been aggravated by a relaxed policy that permitted considerable absenteeism and by a serious problem of retaining experienced technicians and non-commissioned officers. Navy The navy is divided into two fleets: the Western Fleet has bases in Jeddah, Jizan, and Al Wajh; the Eastern Fleet has bases in Al Jubayl, Ad Dammam, Ras Mishab, and Ras al Ghar. The marines are organized into one infantry regiment with two battalions. The navy's inventory includes 11 principal surface combatants, 65 patrol and coastal combatants, 7 mine warfare vessels, 8 amphibious craft, and 7 support and miscellaneous craft. Naval aviation forces have 19 helicopters (armed) serving in naval support. Air Force The air force is organized in seven fighter/ground-attack squadrons, six fighter squadrons, and seven training squadrons. Saudi Arabia has at least 15 active military airfields. As of 2011, Saudi Arabia has around 300 combat aircraft. The kingdom's combat aircraft are newly acquired Typhoons and upgraded Tornado IDS, F-15 Eagle and F-15E Strike Eagle fighter planes. Saudi Arabia has a further 80+ F-15 Eagles on order and an option to buy another 72