The Landing Vehicle Tracked (LVT) was a class of amphibious vehicles introduced by the United States Navy, Marine Corps and Army during World War II. Originally intended solely as cargo carriers for ship to shore operations, they rapidly evolved into assault troop and fire support vehicles as well. The types were all widely known as amphtrack, amtrak, amtrac etc., a portmanteau of amphibious tractor. This article focuses on the first generation of designs produced in the World War II era.