This redesigned form of the amphibian help car LVT-(A) 1 was created the United states Marines. During numerous actions through the Pacific Campaign, the Marines became conscious of the need for a car more significantly armed than its predecessor which had a 37 MM cannon. This improvement finished up being required to better counteract japan fortifications and tanks which expanded in number whilst the War progressed. Fashioned with a whole new tower housing a quick 75 MM howitzer, this car had been popular in battles the conquest of Iwo Jima and Okinawa.