America M10 Tank Destroyer wound up being provided to British forces through Lend-Lease, an application of aid to nations at war against Germany along with its allies. Its primary armament finished up being considered under-performing by the British, whom replaced the 3'' device because of the AT 17-pounder which has been presently setup on Firefly Sherman tanks. The M10 had its baptism of fire through the Battle of Normandy"