Mission Boston was a parachute combat assault at night by Major General Matthew Ridgway's U.S. 82nd "All American" Airborne Division on June 6, 1944, part of the American airborne landings in Normandy during World War II. Boston was a component element of Operation Neptune, the assault portion of the Allied invasion of Normandy, codenamed Operation Overlord. 6,420 paratroopers jumped from nearly 370 C-47 Skytrain troop carrier aircraft into an intended objective area of roughly 10 square miles (26 km2) located on either side of the Merderet river on the Cotentin Peninsula of France, five hours ahead of the D-Day landings.