The Belize Defence Force (BDF) serves as the country's military and is responsible for protecting the sovereignty of Belize. The BDF, with the Belize National Coast Guard and the Immigration Department, is a department of the Ministry of Defence and Immigration. In 1997 the regular army numbered over 900, the reserve army 381, the air wing 45 and the maritime wing 36, amounting to an overall strength of approximately 1400. In 2005, the maritime wing became part of the Belizean Coast Guard. In 2012, the Belizean government spent about $17 million on the military, constituting 1.08% of the country's gross domestic product (GDP).