The primary outcome of the Battle of Normandy in 1944, commonly known as D-Day, was the successful establishment of a significant Allied foothold in Western Europe during World War II. Commencing on June 6, 1944, this amphibious assault involved extensive planning and coordination amongst Allied forces, including troops from the United States, United Kingdom, and Canada. The operation led to the liberation of occupied France from Nazi control and paved the way for the Allied advance into Germany, contributing to the eventual defeat of the Axis powers and altering the course of the war.