Men of the Lancashire Fusiliers cleaning a Lewis gun in a trench near Messines in Belgium during January 1917.
Men of the King's Liverpool Regiment carrying barbed wire picket posts along a communication trench near Blairville Wood, 16th April 1916.
A team of stretcher bearers struggle through deep mud to carry a wounded man to safety near Boesinghe on 1 August 1917 during the Third Battle of Ypres.
The dawn sky is lit by the bombardment before the assault on Thiepval, 15 September 1916, during the Battle of the Somme.
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.
The two 'Women of Pervyse', Mairi Chisholm and the Baroness de T'Serclaes driving their motor ambulance through the ruins of Pervyse.
Battle traffic at Grevillers 25 August 1918. Mark V Tanks and infantry going forward following the Capture of Grevillers by the New Zealand Division.
Men of the Border Regiment resting in shallow dugouts near Thiepval Wood, Somme, August 1916.
British infantrymen give a helping hand to wounded German prisoners near La Boisselle during the Battle of the Somme, 3 July 1916.
An ambulance driver of the First Aid Nursing Yeomanry (FANY) assists with the maintenance of her vehicle at St Omer, 28 February 1917.
Nurses on a British ambulance train near Doullens with their pet canaries, 27 April 1918.
Two women munition workers operate a shell case forming machine during the First World War at the New Gun Factory of the Royal Arsenal, Woolwich, London.
A Sopwith 1 1/2 Strutter takes off from a ramp on the 'Q' turret of the battlecruiser HMAS AUSTRALIA. This feat was first achieved on 4 April 1918.
The liner RMS ACQUITANIA dazzle-painted during her role as a troopship during the First World War.
Men of 137th Brigade, 46th Division, are addressed by Brigadier General J C Campbell VC CMG DSO on the Riqueval Bridge after breaking the German's Hindenburg Line defences on 29 September 1918.
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.
Officers of 1/7th Battalion, King's Liverpool Regiment checking a map in trenches of the La Bassee Canal sector, 28 February 1918.
The Duchess of Sutherland sitting with patients at her hospital at Calais during July 1917.
A Middleweight bout at the Grand Fleet Boxing Tournament in 1918 between Chief Carpenter's Mate Gartner (US Navy) and Leading Stoker Roberts (Royal Navy).
Two cooks of the First Aid Nursing Yeomanry (FANY) outside their hut with trays of food at a military hospital at Calais in January 1917.