Men of the 8th Battalion, East Yorkshire Regiment going up to the line near Frezenberg during the Third Battle of Ypres, 1917.
British commandos of 1st Special Service Brigade, led by Lord Lovat, landing on 'Queen Red' sector of Sword Beach, at La Breche, on the morning of 6 June 1944.
A heavily-armed jeep patrol from 'L' Detachment SAS in North Africa, 18 January 1943.
45 Royal Marine Commando marches towards Port Stanley during the Falklands War, 1982. Marine Peter Robinson carrys the Union Flag on his pack.
Winston Churchill with his Chiefs of Staff in the garden of 10 Downing Street, 7 May 1945.
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.
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.
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 Clear Plate Means a Clear Conscience - Don't Take More Than You Can Eat
A British soldier stands besides the grave of a comrade near Pilckem during the Third Battle of Ypres, 22 August 1917.
Winston Churchill reads a newspaper on the platform at St Andrews railway station, during a tour of defences and naval forces in Scotland, 23 October 1940.