 During the early stages of combat in the Pacific, specifically the Guadalcanal Campaign, the U.S. Marine Corps' M2A4 light tank fought against the equally-matched Type 95 Ha-Go light tank; both were armed with a 37 mm main gun.However, the M2 (produced in 1940) was newer by five years.By 1943, the IJA still used the Type 95 and Type 97 Chi-Ha medium tanks, while Allied forces were quickly replacing their light tanks with 75 mm-armed M4s.