A field kitchen is a mobile kitchen, mobile canteens or food truck used primarily by militaries to provide warm food to the troops near the frontline or in temporary encampments.
The first field kitchens were carried in four-wheeled wagons by military units on campaigns throughout history. Indeed, this method of feeding a large travelling group of soldiers was often used, such as on the Wagon Trail in late 19th Century America where the Chuckwagon was employed. By the 20th Century, smaller two-wheeled trailers, became common, especially with the invention of the locomotive. Field Kitchens were often given affectionate nicknames.
Karl Rudolf Fissler of Idar-Oberstein invented a mobile field kitchen in 1892 that the Germans came to refer to as a Gulaschkanone (Goulash Cannon) because the chimney of the stove resembled ordnance pieces when disassembled and limbered for towing. As technology advanced, larger trailers have evolved as horses were phased out in favour of motorized vehicles more capable of towing heavier loads. In WWII the mobile canteen was used as a morale booster in the United Kingdom, fitting in with the culture of the tea break and in particular as a result of the successful wartime experiment of the tea lady on productivity and morale. The larger mobile kitchens (now commonly called "flying kitchens" because of the greater speed with which they can be deployed) can service entire battalions of troops.