British infantrymen give a helping hand to wounded German prisoners near La Boisselle during the Battle of the Somme, 3 July 1916.
Winston Churchill uses a telescope to watch an assault against enemy positions north of Florence, from the observation post of a battery of the 66th (Lowland) Medium Regiment, Royal Artillery, 20 August 1944.
Men of the 2nd Australian Division in the front line at Croix du Bac, near Armentieres, 18 May 1916.
British infantry silhouetted against the skyline in Kuwait, as the troops prepare for operations in Iraq, 2003.
A British Army helicopter carries a load over a camp at sunset in Kuwait, during preparations for Operation 'TELIC', the invasion of Iraq, 2003.
Tank F4, 'Flirt II', at the Tank Driving School at Wailly on 21 October 1917, in training for the Battle of Cambrai.
Corporal M Smith of the Duke of Cornwall's Light Infantry, posing with a Thompson sub-machine gun in the San Angelo area of Italy, April 1944.
The Commander-in-Chief Home Forces, General Sir Bernard Paget, in a Crusader tank of 42nd Armoured Division during a large-scale exercise near Malton in Yorkshire, 29 September 1942.
Munition workers in a shell warehouse at National Shell Filling Factory No.6, Chilwell, Nottinghamshire in 1917.