Since 1949 Italy, as a member of NATO, has maintained large and balanced modern forces. The total strength in 2002 was 216,800 active personnel with reserves numbering 65,200. Army personnel numbered 128,000 operating over 1,000 main battle tanks. Navy personnel totaled 38,000, including 1,500 marines. The air force had a total strength of 50,800 personnel with 261 combat aircraft. Italy provides support for 12 peacekeeping missions. Italy's military budget for 2002 was $20.2 billion or1.6% of GDP.