Shower train

Shower trains or bathing trains were used to provide bathing facilities to troops stationed along the battlefront.

Switzerland
Shower trains (known as Armeebadezug) were used during the First World War in Switzerland. Each train consisted of old rolling stock from private railway companies: a locomotive, a tank car and converted passenger cars, each with a shower room and two cloakrooms. The water was taken from the tank car and heated by the locomotive.

This train served the thousands of Swiss militia protecting the territorial integrity of their country along the border.

Imperial Russia
Similar bathing trains were used in Russian Empire in 1914.