Lieutenant-Colonel Gerard Evelyn Leachman, CIE, DSO (27 July 1880, Petersfield, Hampshire[1] – 12 August 1920, Iraq) was an English soldier and intelligence officer who travelled extensively in Arabia.
[5] In 1912 Leachman made a second expedition with the intention of crossing the Rub Al Khali, but was refused permission by Ibn Sa'ud when he reached Riyadh and instead went to Hasa.
Leachman was specifically assigned to Light Armoured Motor Brigade on the right bank of the Tigris, ostensibly with a special task to work with local tribes.
[7] He was murdered during the 1920 Iraqi Revolt by a son of Dhari ibn Mahmoud, an Arab tribal leader of the Zoba tribe in the Shammar confederation, in Abu Ghraib near Fallujah on 12 August 1920.
[8][9] Leachman's death sparked an immediate outbreak of tribal uprisings on the Euphrates between Falluja and Hit, and was responsible for General Haldane's advance on the same area in September 1920.