Men of the 8th Battalion, East Yorkshire Regiment going up to the line near Frezenberg during the Third Battle of Ypres, 1917.
Cecil Beaton portrait of Winston Churchill at his seat in the Cabinet Room at No 10 Downing Street, London.
Supermarine Spitfire PRXI 'Thank U NHS' Spitfire.
Winston Churchill outside 10 Downing Street, 21 November 1941.
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.
Supermarine Spitfire Mk Vb of No. 92 Squadron, 19 May 1941. This aircraft, serial R6923, was shot down by a Messerschmitt Bf 109 on 22 June 1941.
Sailors surround the ship's cat "Convoy" asleep in a miniature hammock on board HMS HERMIONE, Gibraltar, 26 November 1941.
A Royal Navy officer using a sextant aboard a destroyer on convoy protection duties, 1942.
Supermarine Spitfire Mk.V 249 Sqn RAF based at Ta Qali airfield, Malta 1943
North American TF51D Mustang 'Contrary Mary', North American P-51D Mustang 'Miss Helen', and Republic P-47D Thunderbolt flying together
VE Day in London, 8 May 1945
Free French soldiers attend a mass at sunrise during the siege of Bardia in Libya, December 1940.
The Battle of Britain, 1940
Six Hurricane Mark Is of No. 73 Squadron RAF, based at Rouvres, France, flying in loose echelon formation.
Searchlights pierce the night sky during an air-raid practice on Gibraltar, 20 November 1942.
Pilots of No. 303 (Polish) Squadron RAF with one of their Hawker Hurricanes, October 1940.
Paratroops drop from Dakota aircraft over the outskirts of Arnhem during Operation 'Market Garden', 17 September 1944.
Officers and men of 26th Divisional Ammunition Train (Army Service Corps) playing football in Salonika, Christmas 1915.
Men of Royal Irish Rifles resting in a communication during the opening hours of the Battle of the Somme, 1 July 1916.
Men of 7th Battalion, The Green Howards on an exercise among the sand dunes at Sandbanks, near Poole in Dorset, 31 July 1940.
Film still from the D-Day landings showing commandos aboard a landing craft on their approach to Sword Beach, 6 June 1944.
Bristol Blenheim Mk IVFs of No. 254 Squadron RAF flying from Aldergrove in Northern Ireland, May 1941.
Avro Lancaster Mk Is of No. 44 Squadron RAF, 29 September 1942.
Australian troops walk along a duckboard track through the remains of Chateau Wood, Third Battle of Ypres (Passchendaele)