First World War Dalton joined the British Army in 1915 for the duration of the Great War. His decision was not that unusual among Irish Volunteers, as over 20,000 of the
National Volunteers joined the British
New Army on the urgings of Nationalist leader
John Redmond. Dalton's father, however, disagreed with his son's decision. Emmet Dalton initially joined the 7th Battalion of the
Royal Dublin Fusiliers (RDF) as a temporary 2nd Lieutenant. By 1916, he was attached to the 9th Battalion, RDF,
16th (Irish) Division under Major-General
William Hickie, which contained many Irish nationalist recruits. During the
Battle of the Somme in September 1916, Dalton was involved in bloody fighting during the
Battle of Ginchy, in which over 4,000 Irishmen were killed or wounded. Afterwards he was transferred to the
6th Battalion, Leinster Regiment, and sent to
Salonika then
Palestine, where he commanded a company and then supervised a sniper school in
El Arish. he became close to Michael Collins and was involved in the
Squad, the Dublin-based assassination unit. On 14 May 1921, Dalton led an operation with
Paddy Daly that Dalton and Collins had devised. It was designed to rescue Gen.
Sean McEoin from Mountjoy Prison using a hijacked British armoured car and two of Dalton's old British Army uniforms. Dalton was married shortly afterwards (on 9 October 1922) to Alice Shannon in Cork's Imperial Hotel. By December 1922 he had resigned his command in the Army. He did not agree with the
execution of republican prisoners that marked the latter stages of the Civil War. After briefly working as clerk of the
Irish Senate, he left this job to work in the movie industry. ==Film industry==