Utah Beach in the context of "Cotentin Peninsula"

Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful liberation of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 (D-Day) with the Normandy landings (Operation Neptune). A 1,200-plane airborne assault preceded an amphibious assault involving more than 5,000 vessels. Nearly 160,000 troops crossed the English Channel on 6 June, and more than two million Allied troops were in France by the end of August.

The decision to undertake cross-channel landings in 1944 was made at the Trident Conference in Washington in May 1943. American General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force, and British General Bernard Montgomery was named commander of the 21st Army Group, which comprised all the land forces involved in the operation. The Normandy coast in northwestern France was chosen as the site of the landings, with the Americans assigned to land at sectors codenamed Utah and Omaha, the British at Sword and Gold, and the Canadians at Juno. To meet the conditions expected on the Normandy beachhead, special technology was developed, including two artificial ports called Mulberry harbours and an array of specialised tanks nicknamed Hobart's Funnies. In the months leading up to the landings, the Allies conducted Operation Bodyguard, a substantial military deception that used electronic and visual misinformation to mislead the Germans as to the date and location of the main Allied landings. Adolf Hitler placed Field Marshal Erwin Rommel in charge of developing fortifications all along Hitler's proclaimed Atlantic Wall in anticipation of landings in France.

Omaha Beach was one of five Allied beach landing sectors of the amphibious assault component of Operation Overlord during the Second World War.

On June 6, 1944, the Allies invaded German-occupied France with the Normandy landings. "Omaha" refers to an 8-kilometer (5 mi) section of the coast of Normandy, France, facing the English Channel, from west of Sainte-Honorine-des-Pertes to east of Vierville-sur-Mer on the right bank of the Douve river estuary. Landings here were necessary to link the British landings to the east at Gold with the American landing to the west at Utah, thus providing a continuous lodgement on the Normandy coast of the Baie de Seine (Bay of the Seine River). Taking Omaha was to be the responsibility of United States Army troops, with sea transport, and a naval bombardment force provided predominantly by the United States Navy and Coast Guard, with contributions from the British, Canadian and Free French navies.

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.

Among the five beaches of the operation, Sword is the nearest to Caen, about 15 kilometres (9.3 mi) from the goal of the 3rd Infantry Division. The landings were achieved with low Allied casualties but the advance from the beach was slowed by traffic congestion and resistance in defended areas behind the beach. Further progress towards Caen was halted by the only armoured counter-attack of the day, mounted by the 21st Panzer Division.