Which date is recognized as D-Day, the pivotal moment of the US invasion of Europe in WWII?

June 6, 1944, is recognized as D-Day, the day when Allied forces launched a massive invasion of Nazi-occupied France during World War II. This operation, known as Operation Overlord, marked a significant turning point in the war, as it initiated the liberation of Western Europe from Nazi control.

On D-Day, approximately 156,000 American, British, Canadian, and other Allied troops stormed the beaches of Normandy. This monumental effort involved extensive planning and coordination, including aerial and naval bombardments. The success of this invasion laid the groundwork for subsequent Allied advances into Europe, ultimately leading to the defeat of Nazi Germany.

The other dates provided do not relate to the invasion of Europe in World War II. For example, August 6, 1945, is associated with the atomic bombing of Hiroshima, December 7, 1941, marks the attack on Pearl Harbor, and April 4, 1945, is not a significant date for the context of the European invasion but does relate to other military operations during the war. Thus, June 6, 1944, stands out as the pivotal moment in the context of the Allied invasion of Europe.