The army is extremely well supplied, having devoted much of its considerable resources to the domestic production of weapons. The army has several thousand main battle tanks, armoured personnel carriers, and artillery pieces (both towed and self-propelled). The army also fields multiple-launch rocket systems and several short-range missile systems. The naval fleet consists of a variety of relatively small surface crafts (destroyers, frigates, missile craft, and patrol boats), as well as a small submarine fleet and an air arm. The air force flies several squadrons of high-performance fighter and ground-attack aircraft and a number of support and cargo planes.