D-Day was the day the Allies invaded Normandy. The operation had two portions, the airborne and amphibious landings. Approximately 24,000 soldiers from Britain, the United States, Canada, and France were dropped from planes with parachutes onto the beach. With 160,000 men attacking coming from ships, this was one of the biggest amphibious attacks in war history. The beaches invaded were Sword, Juno, Omaha, Gold, and Utah.