The M3 Lee was an American medium tank used during World War II. It was designed in the early 1940s and featured a unique two-turret design, with a 75mm gun in the sponson and a smaller 37mm gun in the turret. This tank was primarily used by the United States Army and was notable for its versatility on the battlefield. The M3 Lee saw action in various theaters, including North Africa and the Pacific. Despite its innovative design, it had limitations, such as a high profile and relatively weak armor. It was eventually replaced by more advanced tanks, like the M4 Sherman, as the war progressed.