What did the allies accomplish on D-Day?

On D-Day, June 6, 1944, the Allies launched a massive invasion of Nazi-occupied France, marking a pivotal moment in World War II. They successfully landed over 156,000 troops on five beachheads along the Normandy coast, establishing a crucial foothold in Europe. The operation also involved extensive air and naval support, which facilitated the movement of troops and supplies. Ultimately, D-Day set the stage for the liberation of Western Europe from Nazi control.