The Antigua and Barbuda Defence Force (ABDF) is the armed forces of Antigua and Barbuda. The ABDF has responsibility for several different roles: internal security, prevention of drug smuggling, the protection and support of fishing rights, prevention of marine pollution, search and rescue, ceremonial duties, assistance to government programs, provision of relief during natural disasters, assistance in the maintenance of essential services, and support of the police in maintaining law and order.

The ABDF is one of the world’s smallest militaries, consisting of 245 personnel. It is much better equipped for fulfilling its civil roles, as opposed to providing a deterrence against would-be aggressors or in defending the nation during a war.