In 2002, Ethiopia was re-organizing the military following conflict with Eritrea. The total number of active armed forces personnel was estimated at 252,500. The army, which was in the process of being organized into three military regions, was equipped with an estimated 300 main battle tanks. The air force, with personnel estimated at 2,500, was equipped with 55 combat aircraft and 30 armored helicopters. The military budget for 2001 was $800 million, or 12.6% of GDP.