In 2002 the active armed forces totaled 177,950, of whom approximately 9,400 were women. Reservists numbered 328,500 for all three services. The 118,800-member army was armed with 682 main battle tanks. The navy had 26,950 members, including 700 naval aviators and 5,600 marines. Equipment included 1 aircraft carrier, 15 frigates, 8 submarines, 37 coastal and patrol combatants, and various mine warfare and transport vessels. The air force had 22,750 personnel and 198 combat aircraft. The civil guard numbered about 72,600. Spain provided troops to UN and peacekeeping missions in six regions. In 2002 Spain spent $8.6 billion on defense or 1.2% of GDP.