Of the landings on the five assault beaches in Normandy on D-Day.Omaha Beach was the only one ever in doubt.Within moments of landing, a third of the assault troops in the first wave were casualties.The difficulties encountered on “bloody Omaha” were due to the more difficult terrain on this coastline, the unexpected presence of a first-rate German division at the beach and inadequate fire support.Yet in spite of all these problems, by the end of D-Day, the Atlantic Wall had been breached and the US Army’s V Corps was firmly entrenched on the French coast