Former aircraft include: MiG-15, MiG-17, MiG-19, North American B-25 Mitchell, North American P-51 Mustang, and the Hawker Sea Fury In the 1980s, Cuba with the help of the Soviet Union was able to project power abroad, using its air force, especially in Africa. During that time Cuba sent jet fighters and transports to fight in countries such as Angola (against South Africa) and Ethiopia (against Somalia) In 1990, Cuba's Air Force was the best equipped in Latin America. In all, the modern Cuban Air Force imported approximately 230 fixed wing aircraft. Although there is no exact figure available, Western analysts estimate that at least 130 (with only 25 operational[15]) of these planes are still in service spread out among the thirteen military airbases on the Island. In 1998, according to the same DIA report mentioned above, the air force had 'fewer than 24 operational MIG fighters; pilot training barely adequate to maintain proficiency; a declining number of fighter sorties, surface to air missiles and air-defence artillery to respond to attacking air forces. By 2007 the IISS assessed the force as 8,000 strong with 31 combat capable aircraft and a further 179 stored. The 31 combat capable aircraft were listed as 3 MiG-29s, 24 MiG-23s, and 4 MiG-21s. There were also assessed to be 12 operational transport aircraft plus trainers and helicopters.