In 2002 the total active armed forces of Slovakia numbered 26,200, with reserves numbering 20,000. The army had 13,000 personnel, armed with 272 main battle tanks. Air Force personnel totaled 10,200, equipped with 60 combat aircraft and 19 attack helicopters. Additionally, there were 4,700 members of paramilitary units, including border police, guard troops, civil defense troops, and railway defense troops. Slovakia provided assistance to seven UN and peacekeeping missions. The defense budget for 2002 was $406 million or 1.9% of GDP.