British troops of the 17th Battalion, London Regiment, 47th Division, crossing a muddy area in the Ancre Valley, Somme, October 1916.
British troops advance to the attack through a cloud of poison gas as viewed from the trench which they have just left.
Avro Lancaster Mk I of No. 83 Squadron, based at Scampton in Lincolnshire, June 1942.
Auxiliary Territorial Service plotters at work
Armourers replenish the ammunition in a Hawker Hurricane Mk I of No. 310 (Czechoslovak) Squadron RAF at Duxford, Cambridgeshire, 7 September 1940.
An Avro Lancaster of No. 514 Squadron RAF over the target during a Bomber Command attack on oil storage tanks at Bec d'Ambes in the Garonne estuary, 4 August 1944.
American troops on board a landing craft heading for the beaches at Oran in Algeria during Operation 'Torch', November 1942.
Aircrew of No. 106 Squadron photographed in front of a Lancaster at Syerston, Nottinghamshire, on the morning after the raids on Genoa, 22-23 October 1942.
Aircrew and Wellington bombers of No. 149 Squadron RAF at Mildenhall, Suffolk, before a night raid over Germany, 10 May 1941.
Aerial photograph showing the opposing trench systems between Loos and Hulluch in July 1917.
A view of 'Pegasus Bridge' over the Caen Canal at Benouville, 12 July 1944. Two of the Horsa gliders that brought the 'coup de main' force in on the night of D-Day can be seen in the background.
A Supermarine Spitfire Mk 1 of No. 19 Squadron RAF being re-armed between sorties at Fowlmere, near Duxford, September 1940.
A sergeant of the Royal Army Veterinary Corps bandages the wounded ear of 'Jasper', a mine-detecting dog at Bayeux in Normandy, 5 July 1944.
A Royal Irish Fusilier at Gallipoli in 1915, attempts to draw the fire of a Turkish sniper to reveal his position.
A portrait of Air Vice Marshal Sir Keith Park while commanding RAF squadrons on Malta, September 1942.
A battery of 18-pounder field guns of the Royal Field Artillery in action near the town of Albert on the Somme, 28 March 1918.
Supermarine Spitfire 1a P7308 XR-D' (G-AIST) coming in to land at the airfield after its display'
The Red Arrows display during a thunderstorm in close proximity to the Duxford Airfield
Frontside propeller view of Aircraft on the Flight Line ready to take part
Curtiss P40F Warhawk G-CGZP "Lees Hope" from the 85th Fighter Squadron, 79th Fighter Group
Berlin Wall celebrations at the Brandenburg Gate
Women welders making stirrup pump handles during the Second World War.
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.