and Bayeux. Estimates of Allied casualties on Sword Beach are as high as 1,000. Aftermath The Normandy landings were the largest seaborne invasion in history, with nearly 5,000 landing and assault craft, 289 escort vessels, and 277 minesweepers participating. Nearly 160,000 troops crossed the English Channel on D-Day, with 875,000 men disembarking by the end of June. Allied casualties on the first day were at least 10,000, with 4,414 confirmed dead. The Germans lost 1,000 men. The Allied invasion plans had called for the capture of Carentan, Saint-Lô, Caen, and Bayeux on the first day, with all the beaches (other than Utah) linked with a front line from the beaches; none of these objectives were achieved. The five beachheads were not connected until 12 June, by which time the Allies held a front around long and deep. Caen, a major objective, was still in German hands at the end of D-Day and would not be completely captured until 21 July. The Germans had ordered French civilians other than those deemed essential to the war effort to leave potential combat zones in Normandy. Civilian casualties on D-Day and D+1 are estimated at 3,000. The Allied victory in Normandy stemmed from several factors. German preparations along the Atlantic Wall were only partially finished; shortly before D-Day Rommel reported that construction was only 18 per cent complete in some areas as resources were diverted elsewhere. The deceptions undertaken in Operation Fortitude were successful, leaving the Germans obliged to defend a huge stretch of coastline. The Allies achieved and maintained air supremacy, which meant that the Germans were unable to make observations of the preparations underway in Britain and were unable to interfere via bomber attacks. Infrastructure for transport in France was severely disrupted by Allied bombers and the French Resistance, making it difficult for the Germans to bring up reinforcements and supplies. Some of the opening bombardment was off-target or not concentrated enough to have any impact, but the specialised armour worked well except on Omaha, providing close artillery support for the troops as they disembarked onto the beaches. Indecisiveness and an overly complicated command structure on the part of the German high command were also factors in the Allied success. War memorials and tourism At Omaha Beach, parts of the Mulberry harbour are still visible, and a few of the beach obstacles remain. A memorial to the U.S. National Guard sits at