The Royal Brunei Land Force (RBLF), Malay: Tentera Darat Diraja Brunei (TDDB) is the land component of the Royal Brunei Armed Forces. The RBLF has responsibility for maintaining the territorial defence of Brunei Darussalam, both from attack from outsiders, and by assisting the Royal Brunei Police in maintaining law and order.

The Royal Brunei Armed Forces (RBAF); Malay: Angkatan Bersenjata Diraja Brunei, (ABDB), is the collective term for all of the military forces or service branches of the sultanate of Brunei Darussalam. The RBAF consists of three primary military branches; the Royal Brunei Land Force, the Royal Brunei Navy, and the Royal Brunei Air Force.