As a member of the British Empire, defence was provided along the lines of the British Army, with the establishment of the King’s Own Malta Regiment as the Infantry Battalion. This Regiment had Infantry Battalions organised as inter-war British Infantry Battalion, with a Machine Gun Platoon of four guns, each with six-man sub-sections.

The Royal Malta Artillery also had Vickers machine guns, both .303-inch and .5-inch variants, included within their war establishments.

The Garrison was supplemented during the Second World War by British Regiments, including the 1st Bn, Cheshire Regiment for a significant period of time.