A heavily-armed jeep patrol from 'L' Detachment SAS in North Africa, 18 January 1943.
Two Battle of Britain fighter pilots, Flight Lieutenant Brian Kingcome (left), commanding officer of No 92 Squadron RAF and his wingman, Flying Officer Geoffrey Wellum, next to a Spitfire at RAF Biggin Hill, Kent, 1941
Squadron Leader Brian 'Sandy' Lane, CO of No. 19 Squadron (centre) confers with Flight Lieutenant Walter 'Farmer' Lawson and Flight Sergeant George 'Grumpy' Unwin at Fowlmere near Duxford, September 1940.
Pilots of No. 303 (Polish) Squadron RAF with one of their Hawker Hurricanes, October 1940.
Men of the 8th Battalion, East Yorkshire Regiment going up to the line near Frezenberg during the Third Battle of Ypres, 1917.
Armourers wheel trolleys of 500-lb GP bombs toward the open bomb bay of an Armstrong Whitworth Whitley Mark V.
A raiding party of the 10th Battalion, Cameronians (Scottish Rifles) waiting for the signal to go. John Warwick Brooke, the official photographer, followed them in the sap, into which a shell fell short killing seven men. Near Arras, 24 March 1917.
A Douglas Dakota of BOAC at Gibraltar, silhouetted by searchlights on the Rock.
Wounded men being tended in a trench near Beaumont Hamel on the morning of the initial assault, Battle of the Somme, 1st July 1916.
Wounded British soldier showing shrapnel damage to his steel helmet caused near Hamel on the Somme Front in December 1916.
Women pilots of the Air Transport Auxiliary (ATA) in flying kit at Hatfield, 10 January 1940.
Winston Churchill, accompanied by Field Marshal Sir Bernard Montgomery and Field Marshal Sir Alan Brooke, inspects tanks of 7th Armoured Division in Berlin, 21 July 1945.
Winston Churchill with his Chiefs of Staff in the garden of 10 Downing Street, 7 May 1945.
Unveiling of the permanent Cenotaph at Whitehall, by His Majesty King George V, 11 November 1920.
Troops come ashore on one of the Normandy invasion beaches, past the White Ensign of a naval beach party, 7 June 1944.
The Operations Room at RAF Fighter Command's No. 10 Group Headquarters, Rudloe Manor (RAF Box), Wiltshire, showing WAAF plotters and duty officers at work, 1943.
Tank F4, 'Flirt II', at the Tank Driving School at Wailly on 21 October 1917, in training for the Battle of Cambrai.
Supermarine Spitfire Mk VBs of No. 122 Squadron RAF take off from Hornchurch, Essex, for a fighter sweep over France, May 1942.