The Qatar Armed Forces are the military forces of Qatar. The country maintains a modest military force of approximately 11,800 men, including an army (8,500), navy (1,800) and air force (1,500). Qatar's defence expenditures accounted for approximately 4.2% of gross national product in 1993. In 2008 Qatar spent US$2.355 billion on military expenditures, 2.3% of the gross domestic product. Qatari special forces have been trained by France and other Western countries, and are believed to possess considerable skill. They also helped the Libyan rebels during the 2011 Battle of Tripoli.