Between March 1941 and March 1942, 5th Infantry Division as a whole operated in Ulster under British Troops in Northern Ireland (B.T.N.I.) providing defence.
5th Infantry Division
In 1941, 5th Reconnaissance Battalion, divisional troops of 5th Infantry Division operated in Northern Ireland as part of a defence against potential invasion.
17th Infantry Brigade was part of 5th Infantry Division of the British Army during its time in Northern Ireland defending against the threat of Nazi invasion.
