, the Head of the Catholic Church in England and Wales, and Major-General Hickie, GOC 16th (Irish) Division, inspecting troops of the 8th/9th Battalion,
Royal Dublin Fusiliers at Ervillers, France, 27 October 1917. When war was declared the Staff of the Irish Command became automatically the staff of the
II Army Corps and accordingly with the outbreak of
World War I in August 1914, he was promoted to the temporary rank of
brigadier general, and as part of the
British Expeditionary Force (BEF) in France took charge of the adjutant and quartermaster-general's department during the retreat of the II Corps after the
Battle of Mons, to
Paris, and during the
Battle of the Marne. In the middle of September 1914, he relieved one of the brigadiers in the fighting line,
Gerald Cuthbert, as commander of the
13th Infantry Brigade, part of the
5th Infantry Division, and then commanded the
53rd Infantry Brigade of the
18th (Eastern) Division until December 1915, when he was ordered home to assume command of the
16th (Irish) Division at
Blackburn. Promoted to the temporary rank of major general that same month, Hickie took over from the much older Lieutenant General
Sir Lawrence Parsons. Hickie – one of a rare breed, a senior, Irish, Catholic officer – was a popular replacement. It was politically a highly sensitive appointment which required the professionalism and political awareness Hickie, fortunately, possessed as the division was formed around a core of Irish
National Volunteers in response to
Sir Edward Carson's
Ulster Volunteers. He was much more diplomatic and tactful than his predecessors and spoke of the pride which his new command gave him, but did not hesitate to make sweeping changes amongst the senior officers of the 16th Division. After putting the division through intensive training, it left under Irish command, of which each man took personal pride. It arrived in France in December 1915. In the next two years and four months during which Hickie, who in January 1917 was promoted to the permanent rank of major general, commanded the 16th (Irish) Division, it earned a reputation for aggression and élan and won many memorials and mentions for bravery In February 1918, Hickie was invalided home on temporary sick leave, but when in the hospital the
German spring offensive began on 21 March, with the result that after his division moved under the command of Lieutenant General
Hubert Gough, commander of the
British Fifth Army, it was practically wiped out and ceased to exist as a division. Although promised a new command, this did not happen before the war finally ended due to the
armistice with Germany in November. Hickie had typified the army's better divisional commanders, was articulate, intelligent and had been competent and resourceful during the BEF's difficult period 1916–1917, laying the foundations for its full tactical success in 1918. and awarded the
Croix de Guerre in December 1919. ==Civil engagement==