Isuzu 1.5-ton Truck (JP430) includes two one-piece resin Isuzu 1.5-ton Trucks. Before the outbreak of World War Two, the Imperial Japanese Army (IJA) lacked a reliably truck capable of cross-country operation. Upon investigating the types commercial trucks available at the time, the Isuzu medium truck proved adequate for the Army"s requirements. First introduced in 1937, the Isuzu 1.5-ton truck was the most widely used trucks of the Imperial Japanese Army up until the end of the Second World War.