Battle of Albert. British troops asleep in a support trench previous to the attack on Beaumont Hamel, 7 a.m. July 1st 1916.
A captured German pillbox nicknamed 'Gibraltar' in the ruins of Pozieres, Somme, 20th September.
A well concealed and revetted trench, between two-lines of trees. Gommecourt, given up by the Germans in March 1917.
A barbed wire gate in a trench system to form a block against raiders at Cambrin, 16 September 1917.
9.2 inch howitzers of the 148th Siege Battery, RGA at Maricourt, September 1916.
Officers of 12th Royal Irish Rifles wading through mud in a trench, Essigny, 7 February 1918.
British and German wounded at an advanced dressing station near Epehy share a cigarette, 18 September 1918.
Officers standing in deadly fumes of gas on the training school.
View from Camp Shawqat, Helmand, Afghanistan, 2013
Camp Bastion, Helmand, Afghanistan, 2013
Commandos of 48 (RM) Commando coming ashore from landing craft at St Aubin-sur-Mer on Juno Beach, 6 June 1944.
A British DUKW carries supplies and American paratroopers across the Waal river at Nijmegen, 30 September 1944.
Guardsmen of 3rd Irish Guards in a Loyd carrier, wrapped up against the clouds of dust, during Operation 'Goodwood', Normandy, 18 July 1944.
Men of 12 Platoon, 'B' Company, 6th Royal Scots Fusiliers prepare to advance at the start of Operation 'Epsom', Normandy, 26 June 1944.
General Montgomery with Generals Patton (left) and Bradley (centre) at 21st Army Group HQ, Normandy, 7 July 1944.
Major General George 'Pip' Roberts (right), commanding 11th Armoured Division, with Brigadier Roscoe Harvey of 29th Armoured Brigade, and a Sherman command tank, Normandy, 15 August 1944.
His Needs Come First
A CMP truck and motorcycle of 11th Royal Horse Artillery (Honourable Artillery Company), 1st Armoured Division, Tunisia, 22 April 1943.
Royal Artillery 40mm Bofors guns being assembled on their arrival in Greece, 25 November 1940.
Silhouette of a British Challenger tank commander during the Gulf War, 1991.
The Queen and Princess Elizabeth talk to paratroopers in front of a Halifax aircraft during a tour of airborne forces preparing for D-Day, 19 May 1944.
Staff Sergeant-Major Twist of the ATS embraces and kisses her husband, Lance-Bombardier Twist during a special photo-shoot at Army Headquarters in Northern Ireland, 22 October 1941.
Private W Stack of No. 9 Commando at Anzio, equipped for a patrol with a Browning pistol, 5 March 1944.
A soldier from 101st Light Anti-Aircraft Regiment prepares for D-Day by reading his French handbook at a camp near Portsmouth, 29 May 1944.