The first official photograph taken of a Tank going into action, at the Battle of Flers-Courcelette, 15th September 1916. The man shown is wearing a leather tank helmet. © IWM (Q 2488)

Battle of Flers-Courcelette. A Brigadier and his staff outside Tank 17 of D Company, which was used as his Headquarters. Near Flers, 21st September 1916. © IWM (Q 2487)

The remains of a destroyed British male tank stand over the edge of a dugout on the right. One gun on the tank points down towards the inside of the trench and the entrance to the dugout, and there are helmets and equipment lying on the ground at the top. A single British grave is marked with a steel helmet placed on a wooden cross in the ground. Pencil and paper. Creator: Orpen, William. 1917 © IWM (Art.IWM ART 2389)

Battle of Flers–Courcelette. "C" Company Mark I tank, C.19 'Clan Leslie', in the Chimpanzee Valley on 15 September 1916, the day tanks first went into action. © IWM (Q 5575)

The remains of a British tank lies deserted, as though grounded in the earth. The side has been blown out by a shell revealing some of the shattered interior. Pencil, watercolour, and paper. Creator: Orpen, William. 1917 © IWM (Art.IWM ART 2387)

Captured German Tank Elfriede put out of action and captured by "A" Company 1st Battalion Tank Corps, one kilometre from Villers, Bretonneux on the Hangard en Santerre Road, during the first German tank attack, 24th April, 1918. Only 20 of these tanks were built, the track being shorter then the body, they carried 8 heavy machine guns and a 57 mm. quick-firing gun. © IWM (Q 29578)

Battle of Amiens. Mark V (Female) tanks of the 4th Battalion, Tank Corps, in Meaulte soon after its capture by the 5th Battalion, Royal Berkshire Regiment (12th Division), 22/08/1918 © IWM (Q 7302)

Tank officers relaxing around a gramophone player, with their pet dog, in camp at Poperinghe, 26/09 1917. Officers on the right are engaged in a game of cards. © IWM (Q 2898)

Two British soldiers, one of them a member of the Tank Corps, standing together on a sand dune and talking. In the background, a British tank climbs a steep sand bank. © IWM (Art.IWM PST 13491)

A British infantryman seated with his back to the viewer. On the blackboard before him, there is a diagram of a tank. He is being instructed by a part-human/part-mechanical figure, who has the body of a tank © IWM (Art.IWM PST 3929)

A cartoon from the First World War period by Frank Holland "An Object Lesson: This Little Pig stayed at Home" depicting a lazy conscientious objector who stayed at home while the rest of his family contributes to the war effort. © IWM (Q 103334)

Lieutenant Ronald Lucas Quixano Henriques. Unit: 2nd Battalion, attached to the 1st Battalion, the Queen's (Royal West Surrey Regiment). Death: 14 September 1914, killed in action, Western Front. IWM non commercial licence © IWM (HU 123223)

Second Lieutenant Alexis George De Gunzburg. Unit: 11th (Prince Albert's Own) Hussars, attached to Royal Horse Guards (7th Cavalry Brigade) as Galloper and Interpreter. Death: 06 November 1914 Killed in action near Ypres Western Front. IWM non commercial licence © IWM (HU 121133)

Lieutenant Frank Alexander De Pass VC MID. Unit: 34th (Price Albert Victor's Own) Poona Horse. Death: 25 November 1914 Killed in action near Festubert Western Front. IWM non commercial licence © IWM (HU 121582)

Captain Cecil David Woodburn Bamberger. Unit: Royal Engineers, 7th (Meerut) Division, Indian Army. Death: 20 December 1914 Western Front. IWM non commercial licence © IWM (HU 113260)

Lieutenant-General Sir John Monash, who commanded the Australian Corps on the Western Front from May 1918. Under Monash, the Australian Corps was one of the spearhead formations of the BEF in the final offensives of the war. Date 1918-05-25. IWM non commercial licence © IWM (E(AUS) 2350)

The Commanding Officer of one of the Casualty Clearing Stations and his staff, including nurses of the Queen Alexandra's Imperial Military Nursing Service (QAIMNS). © IWM (Q 26683)

British, French, Italian officers (as well as one US Army officer) and QAIMNS nurses watching the events at a Divisional Horse Show, August 1918. The competition was probably organised by the British 23rd Division. © IWM (Q 26999)

Queen Alexandra's Imperial Military Nursing Service (QAIMNS) Sisters attending to a patient in the Officer's War, No. 14 General Hospital, Wimereux. © IWM (Q 8011)

The Queen Alexandra's Imperial Military Nursing Service (QAIMNS) headquarters of Sister Barker, Matron in Chief, at the Military Hospital at Boulogne. Left to right: Sister Barker, Miss Wilkinson of the Voluntary Aid Detachments (VAD), Miss Hopper, Miss Urquhart. © IWM (Q 108210)

A ward in the No. 83 Dublin Hospital at Boulogne, with a nurse of the Queen Alexandria's Imperial Military Nursing Service (QAIMNS) in the foreground. © IWM (Q 108196)

Medicine at Sea: A Queen Alexandra's Royal Naval Nursing Service (QAIMNS) Sister taking the pulse of a patient at Cholmondeley Castle, in Cheshire, a stately home requisitioned for use as a naval hospital. Cholmondeley Castle was one of several naval hospitals especially set up to treat patients with severe or chronic psychiatric illness. © IWM (A 11529)

HMS Castor. Wounded Received After The Battle Of Jutland, 31st May 1916. The interior of a cabin below deck with several wounded sailors, most swathed in bandages, laid out parallel to one another across the floor. They are tended to by three orderlies and one naval doctor who is standing on the right and has a stethoscope round his neck. Two of the orderlies are lowering a wounded man on a stretcher to the floor in the background. Creator: Gordon, Jan. 1918. © IWM (Art.IWM ART 2781)

Battle of the Ancre. Troops outside a London coffee stall at Auchonvillers, a starting-point of the British attacks on Beaumont Hamel. November 1916. © IWM (Q 4545)

Battle of Pozieres Ridge. Ammunition being brought up to the 4.7 inch guns of the London Heavy Battery, near Contalmaison. August 1916. © IWM (Q 4090)

Battle of Albert. British troops moving through the ruins of Fricourt during the attack on Contalmaison, captured by 23rd Division, 10 July 1916.© IWM (Q 4087)

The Postal Censorship at Strand House, Portugal Street, London. Watercolor paint. 1917. Chandler-Thomson, Kate. image: an interior view of female censors at work on post in what appears to be a requisitioned laboratory. Two women sit at a long bench desk in the foreground, a small sink incorporated into the surface of the desk. Further back four women sit at a table, also censoring letters. Numerous letters and envelopes are tied up and suspended from the ceiling along with a hanging lamp, which is in the centre of the composition. © IWM (Art.IWM ART 4749)

Painting. 1918. Nevinson, C R W. A crowd of grey-faced women, men and children wait in a queue for food. In 1917, panic buying became a threat due to the shortage of food and rationing was soon introduced in order to regulate the situation. The painting was originally titled 'Squalor' but Nevinson renamed it to make it more newsworthy. He draws a visual contrast between the colourful advertising and the monochrome people. His use of angular faceting, inspired by the Italian Futurists, recalls his early war work. © IWM (Art.IWM ART 840)

Poster 1917. During the First World War, merchant shipping bringing imported food supplies into Britain was extremely vulnerable to German U Boat attack. By 1917, 400 Allied ships a month were being sunk. Although wheat was imported from new sources and Britain’s own harvest reached record levels, the government actively encouraged economy. The poster is neither subtle nor sophisticated. However, it does give an interesting insight into the controlled war economy established by Lloyd George. Not only was industry reorganised and food supplies rationed, but also individual freedoms were radically constrained. The poster calls on the individual to voluntarily contribute to these changes and makes a direct link between their actions and the wider war effort. © IWM (Art.IWM PST 4470)

The uncommon languages room. Letters written in almost any language in the world can be translated here. The recepticles in front are for Malayan, Czech, Slovak, Romanian, Hungarian and Arabic letters and have words of each language written in front, 24 September 1917. © IWM (Q 54150)

Munition workers in a shell warehouse at the National Shell Filling Factory, Chilwell, Nottinghamshire. This was one of the largest shell factories in the country. 1917. © IWM (Q 30018)

Two female munitions workers stand beside examples of the shells produced at National Shell Filling Factory, Chillwell, Nottinghamshire during the First World War. 1917. © IWM (Q 30017)

'The Steel Converter at Woolwich Arsenal', commissioned by the Munitions Sub- Committee and purchased for the Imperial War Museum in 1919. Catalogue entry drafted in 1919: "This picture represents the Tropenas Steel converters at work in the Royal Laboratory Shell Foundry at Woolwich Arsenal. In the converter on the right, the 'blow' is taking place, a blast of compressed air being driven on to the molten metal in the Converter by means of which, the impurities, such as Phosporus and Silicon are oxidised and eliminated, and the carbon reduced to the required amount. The other is in the act of pouring out the molten steel into a ladle, which is conveyed by an overhead crane to the shell moulds, where it is finally poured to make the shell billet." Creator: Hyde, William. Date:1919 © IWM (Art.IWM ART 2275)

Voluntary Aid Detachment, Order of St John (VAD) nurses and convalescents in a ward in the Duchess of Westminster's (No.1 Red Cross) Hospital at Le Touquet (Le-Touquet-Paris-Plage), 18th June 1917. © IWM (Q 2405)

Members of the Voluntary Aid Detachment (VAD) feeding a convalescent patient with the aid of a feeding tube at the Royal Naval Hospital, Granton. © IWM (Q 18952)

27th June 1917. © IWM (Q 2440)

A Voluntary Aid Detachment camp, with a wooden buildings to the left and nissen huts to the right and centre, forming an open-fronted square. Several female VAD workers are visible within the square. Trees and a cloudy blue sky are visible in the background. There is a wire fence and green vegetation in the foreground. © IWM (Art.IWM ART 2886)