1944 D-Day Operation Overlord - Allied Establishment in France

Allied Establishment in France

The Allied invasion plans had called for the capture of Saint-Lô, Caen, and Bayeux on the first day, with all the beaches linked except Utah, and Sword (the last linked with paratroopers) and a front line 10 to 16 kilometres (6–10 mi) from the beaches. However, practically none of these objectives had been achieved. It took 3 months for British and Canadian troops to capture Caen, as they faced 7 heavy Panzer divisions, while their American allies, although advancing more rapidly, faced only 2 of these divisions. Overall the casualties had not been as heavy as some had feared (around 10,000 compared to the 20,000 Churchill had estimated) and the bridgeheads had withstood the expected counterattacks.

Once the beachhead was established, two artificial Mulberry harbours were towed across the English Channel in segments and made operational around D+3 (9 June). One was constructed at Arromanches by British forces, the other at Omaha Beach by American forces. By 19 June, when severe storms interrupted the landing of supplies for several days and destroyed the Omaha harbour, the British had landed 314,547 men, 54,000 vehicles, and 102,000 tons of supplies, while the Americans put ashore 314,504 men, 41,000 vehicles, and 116,000 tons of supplies. Around 9,000 tons of materiel were landed daily at the Arromanches harbour until the end of August 1944, by which time the port of Cherbourg had been secured by the Allies and had begun to return to service.