Brunei

the Royal Brunei Armed Forces (RBAF) are responsible for ensuring the country’s sovereignty and territorial integrity, as well as countering outside aggression, terrorism, and insurgency Brunei has a long-standing defense relationship with the UK and hosts a British Army garrison, which includes a Gurkha battalion and a jungle warfare school; Brunei also has close security ties with Singapore and hosts a Singaporean military training detachment the RBAF was formed in 1961 with British support as the Brunei Malay Regiment; "Royal" was added as an honorary title in 1965 and its current name was given in 1984 (2025)

Royal Brunei Armed Forces (RBAF) or Angkatan Bersenjata Diraja Brunei (ABDB): Royal Brunei Land Force (RBLF), Royal Brunei Navy (RBN), Royal Brunei Air Force (RBAirF) (2025)

note 1: the Gurkha Security Unit under the Ministry of Defense is a special guard force for the Sultan, the royal family, and the country’s oil installations

note 2: the Royal Brunei Police Force (RBPF) is under the Prime Minister's Office

18-25 years of age for voluntary military service (2025)

note: the Gurkha Reserve Unit (GRU) employs hundreds of Gurkhas from Nepal, the majority of whom are veterans of the British Army and the Singapore Police Force who have joined the GRU as a second career

the military's s inventory includes equipment and weapons systems from a variety of suppliers from Asia, Europe, and the US (2025)

approximately 7,000 active Armed Forces (2025)