Sword, commonly known as Sword Beach, was the code name given to one of the five main landing areas along the Normandy coast during the initial assault phase, Operation Neptune, of Operation Overlord. The Allied invasion of German-occupied France commenced on 6 June 1944. Stretching 8 kilometres (5.0 mi) from Ouistreham to Saint-Aubin-sur-Mer, the beach proved to be the easternmost landing site of the invasion after the abortion of an attack on a sixth beach, code-named Band. Taking Sword was to be the responsibility of the British Army with sea transport, mine sweeping and a naval bombardment force provided by the British Royal Navy as well as elements from the Polish, Norwegian and other Allied navies.

The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it is the largest seaborne invasion in history. The operation began the liberation of France, and the rest of Western Europe, and laid the foundations of the Allied victory on the Western Front.