In Bahrain,

the BDF is a small, but well-equipped military focused on territorial defense and support to internal security; its primary concern is Iran, both the conventional military threat and Tehran's support to regional terrorist groups; the BDF participates in multinational exercises and has conducted small deployments outside of the country; in 2015, for example, Bahrain joined the Saudi Arabia-led military intervention in Yemen, supplying a few hundred troops and combat aircraft

Bahrain’s closest security partners are the US and Saudi Arabia; it hosts the US Naval Forces Central Command (USNAVCENT; established 1983), which includes the US 5th Fleet, several subordinate naval task forces, and the Combined Maritime Forces (established 2002), a coalition of more than 30 nations providing maritime security for regional shipping lanes; in 2003, the US granted Bahrain Major Non-NATO Ally status, a designation under US law that provides foreign partners with certain benefits in the areas of defense trade and security cooperation; Bahraini leaders have said that the security of Bahrain and Saudi Arabia are “indivisible”; Saudi Arabia sent forces to Bahrain to assist with internal security following the 2011 uprising; Bahrain also has close security ties to other Gulf Cooperation Council  countries, particularly Kuwait and the United Arab Emirates, as well as the UK (2024)