The British Army entered the Second World War on 3rd September 1939 and served across all major theatres from Europe, to the Pacific, and the Far East.
During the Second World War, many sailors from Northern Ireland took to the sea serving under the "Red Duster" or Red Ensign of the British Merchant Navy.
The Royal Air Force operated across all the globe for the duration of the Second World War. Northern Ireland provided many members of air and ground crew.
During the Second World War, many Royal Australian Air Force personnel served in RAF Squadrons at bases and military airfields throughout Northern Ireland.