The Battle of Cherbourg was part of the Battle of Normandy during World War II. It was fought immediately after the successful Allied landings on 6 June 1944. Allied troops, mainly American, isolated and captured the fortified port, which was considered vital to the campaign in Western Europe, in a hard-fought, month-long campaign. Allied plans When they drew up their plans for the invasion of France, the Allied staff considered that it would be necessary to secure a deep-water port to allow reinforcements to be brought directly from the United States. (Without such a port, equipment packed for transit would first have to be unloaded at a port in Great Britain, unpacked, waterproofed and then reloaded onto landing craft to be transferred to France). Cherbourg, at the end of the Cotentin Peninsula, was the largest port accessible from the landings. The Allied planners decided at first not to land directly on the Cotentin Peninsula, since this sector would be separated from the main Allied landings by the Douve river valley, which had been flooded by the Germans to deter airborne landings. On being appointed overall land commander for the invasion in January 1944, British Army General Bernard Montgomery reinstated the landing on the Cotentin peninsula, partly to widen the front and therefore prevent the invaders becoming sealed into a narrow lodgement, but also to enable a rapid capture of Cherbourg. Landings In the early hours of 6 June paratroopers (the US 82nd and 101st Airborne Divisions) landed at the base of the Cotentin Peninsula. Although the landings were scattered, they nevertheless secured most of the routes by which the US VII Corps would advance from Utah Beach. The US 4th Infantry Division landed on Utah Beach shortly after dawn with few casualties. In the immediate aftermath of the landings the priority for the invasion forces at Utah Beach was to link up with the main Allied landings further east. On 9 June the 101st Airborne Division managed to cross the Douve river valley and captured Carentan the next day. After vicious house-to-house fighting during the Battle of Carentan, the airborne troops were able to take the town, ensuring the Allies a continuous front. The front was maintained despite a German counterattack reinforced by armored units on the 13th, known as the Battle of Bloody Gulch. Move across the Cotentin Peninsula This success allowed VII Corps to advance westwards to cut