A Royal Irish Fusilier at Gallipoli in 1915, attempts to draw the fire of a Turkish sniper to reveal his position.
The Gunboat HMS KILDANGAN in dazzle camouflage, 1918.
Munition workers in a shell warehouse at National Shell Filling Factory No.6, Chilwell, Nottinghamshire in 1917.
Aerial photograph showing the opposing trench systems between Loos and Hulluch in July 1917.
British troops of the 17th Battalion, London Regiment, 47th Division, crossing a muddy area in the Ancre Valley, Somme, October 1916.
Soldiers of 'A' Company, 11th Battalion, the Cheshire Regiment, occupy a captured German trench at Ovillers-la-Boisselle on the Somme.
British troops advance to the attack through a cloud of poison gas as viewed from the trench which they have just left.
Wounded men being tended in a trench near Beaumont Hamel on the morning of the initial assault, Battle of the Somme, 1st July 1916.
The remains of Thiepval chateau on the Somme battlefield, 28 September 1916.
Men of the 2nd Australian Division in the front line at Croix du Bac, near Armentieres, 18 May 1916.
Men of the Wiltshire Regiment advancing to the attack through the wire, Thiepval, Somme, 7 August 1916.
A pack horse loaded with rubber trench boots (waiders) is led through the mud near Beaumont Hamel on the Somme battlefield, November 1916.
An Australian carrying his wounded mate to a medical aid post for treatment, Gallipoli, 1915.
British horse lines at Suvla Bay during the Gallipoli Campaign in 1915.
Men of the Lancashire Fusiliers cleaning a Lewis gun in a trench near Messines in Belgium during January 1917.
Three 8-inch howitzers of 39th Siege Battery, Royal Garrison Artillery (RGA), firing from the Fricourt-Mametz Valley during the Battle of the Somme, August 1916.
British soldiers eating hot rations in the Ancre Valley during the Battle of the Somme, October 1916.
The mine under German front line positions at Hawthorn Redoubt is fired 10 minutes before the assault at Beaumont Hamel. First day of the Battle of the Somme, 1 July 1916.
A line of British troops blinded by tear gas at an Advanced Dressing Station near Bethune, 10 April 1918.
A Vickers machine gun team wearing PH Type anti-gas helmets in action near Ovillers during the Battle of the Somme, 1916.
Roll call of the 1st Battalion, Lancashire Fusiliers on the afternoon of 1 July 1916, following their assault on Beaumont Hamel during the opening day of the Battle of the Somme.
Officers and S.E.5a Scouts of No. 1 Squadron, RAF at Clairmarais aerodrome near Ypres.
Tank F4, 'Flirt II', at the Tank Driving School at Wailly on 21 October 1917, in training for the Battle of Cambrai.
A raiding party from the 9th Battalion, Scottish Rifles (Cameronians), leaving a sap and making for the German lines, 11 April 1917.
