Inside an ambulance train, First World War, 5 April 1918. [Getty Images]

UNITED KINGDOM : Interior view of a ward car with three tiers of bunk beds. Ambulance trains were used during the First World War in France and Belgium to transport wounded or sick soldiers to hospital. This train was on display in several stations in Lancashire and Yorkshire before being taken to the Western Front. (Photo by SSPL/Getty Images)

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