Yagai suigu
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The Yagai-suigu (野外炊具 field cooker)[1] are movable cooking facilities equipped by the Japan Ground Self-Defense Force. They are used not only in field trainings but also in disaster relief operations.
Yagai-suigu I Modified

The Yagai-suigu I (野外炊具1号) is a cooking vehicle introduced in 1962 (Shōwa 37). It can serve rice for 600 people or misoshiru for 1500 people at once with its six kerosene-powered furnaces.
In 2004 Chūetsu earthquake, about 160 Yagai-suigu I were sent out from all around Japan to the Niigata Stadium to help afflicted people.
The Yagai-suigu I Modified (野外炊具1号(改)) is a modified version of the Yagai-Suigu I. It equips automated igniter, electric generator, cold boxes, and faucets to supply water into the kettles. Due to its electrical equipments, the Yagai-suigu I Modified has poor waterproofness and must be used indoors when it rains.