It became apparent early in the war that the American Sherman medium tank, a product of prewar engineering, was no match for the best of the German tanks. Almost three years of intensive development resulted in the introduction of a new American tank, the T26E3 General Pershing, into battle in the closing months of the war in Europe. More than a match for the panzers it faced, the Pershing proved itself in combat.
The Pershing served as the Army's first-line tank during the immediate postwar period. During the first year of the Korean War it played a major role in blunting the threat of Russian-built T34 tanks, which proved to be no match for the Pershing's. 90mm main gun.