Camp Bastion, Afghanistan, 2014.
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 Sherman tank crew of 'C' Squadron, 13th/18th Royal Hussars rest and write letters home by the side of their vehicle, Normandy, 10 June 1944.
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 Hawker Typhoon Mk IB of No. 486 Squadron RAF, 27 October 1943.
A Canadian soldier keeping cool in a home made tub in the shelling area.
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