The TJFF served under Headquarters, British Forces, in Palestine and Trans-Jordan, from 3 September 1939 until 9 February 1948. The O.C. TJFF was a British lieutenant colonel, with headquarters at
Zerqa. Second-in-command was a British major, responsible for administration, workshops, quartermaster's stores and pay. The adjutant, another British major, was responsible for training and personnel and was aided by an assistant adjutant who was an Arab officer. The squadrons and companies were all commanded by British majors, with another British officer as second-in-command. The cavalry squadrons were organised into three rifle troops (36 men) and one machine gun troop (36 rifles and 4 machine guns). The normal tactical and reconnaissance unit however, was the half-squadron or half-company and these were commanded by local captains. Each half-squadron or company consisted of two troops, led by local lieutenants and captains. By the end of 1927 there were 39 officers, including 17 British, 12 British
warrant officers, three staff sergeants and 676 other ranks. In 1930 there were 17 British officers, two in each of the four squadrons and companies with the remainder at Force HQ. In 1935 there were 24 British officers – the OC, seven majors and sixteen captains. The TJFF spent its first six months training in Palestine at Sarafand then at
Shunet Nimrin (from October 1926) in the Jordan Valley. TJFF HQ moved to Zerqa east of the
Jordan River in Trans-Jordan. The cavalry squadrons were based at Zerqa and the camel company was based at
Ma'an. In 1929, the TJFF was called upon to help deal with Arab unrest in Palestine. The camel company moved to
Jericho and a cavalry squadron went to
Jisr el Majamie. A second cavalry squadron was raised and dispatched as reinforcement in early 1930. In 1930, the mechanised company, based at Ma'an, was formed and later that year the camel companies were disbanded. Motorisation extended the range of the TJFF further out into the desert. In 1930 the TJFF had 980 men, including 28 Jews. ==Officers Commanding==