The significant event that marked the end of World War II in Europe was the unconditional surrender of Nazi Germany on May 8, 1945, known as V-E Day (Victory in Europe Day). Following a prolonged and devastating conflict, Germany's defeat came after a series of critical events, including the D-Day invasion and the subsequent liberation of occupied territories by Allied forces. Hitler's suicide in April 1945 led to the collapse of the Nazi regime, culminating in their surrender. V-E Day signified a moment of jubilation and relief for many, though the war continued in the Pacific until Japan's surrender later that year.