arrived at ATB Little Creek, Virginia for a week-long course in demolitions, explosive cable cutting, and commando raiding techniques. On 10 November 1942, the first combat demolition unit successfully cut cable and net barriers across the Wadi Sebou River during Operation Torch in North Africa. This enabled to traverse the water and insert U.S. Rangers who captured the Port Lyautey airdrome. In early May 1943, a two-phase "Naval Demolition Project" was directed by the Chief of Naval Operations "to meet a present and urgent requirement". The first phase began at ATB Solomons, Maryland with the establishment of Operational Naval Demolition Unit No. 1. Six officers and eighteen enlisted men reported from the Seabee's NTC Camp Peary dynamiting and demolition school, for a four-week course. Those Seabees, led by Lieutenant Fred Wise CEC, were immediately sent to participate in the invasion of Sicily. At that time Lieutenant Commander Draper L. Kauffman, "The Father of Naval Combat Demolition," was selected to set up a school for Naval Demolitions and direct the entire Project. The first six classes graduated from "Area E" at NTC Camp Peary. LCDR Kauffman's needs quickly out-grew "Area E" and on 6 June 1943, he established NCDU training at Fort Pierce. Most of Kauffman's volunteers came from the navy's Civil Engineer Corps (CEC) and enlisted Seabees. Training commenced with a grueling week designed to filter out under-performing candidates. Eventually given the name "Hell Week" by NCDU recruits, this rigorous course was integrated into UDT training and remains a part of modern day Navy Seal training today. By April 1944, a total of 34 NCDUs were deployed to England in preparation for Operation Overlord, the amphibious landing at Normandy. On 6 June 1944, under heavy fire, the NCDUs at Omaha Beach managed to blow eight complete gaps and two partial gaps in the German defenses. The NCDUs suffered 31 killed and 60 wounded, a casualty rate of 52%. Meanwhile, the NCDUs at Utah Beach met less intense enemy fire. They cleared of beach in two hours, another by the afternoon. Casualties at Utah Beach were significantly lighter with six killed and eleven wounded. During Operation Overlord, not a single demolitioneer was lost to improper handling of explosives. In August 1944, four NCDUs from Utah Beach plus nine others participated in the landings Operation Dragoon in southern France. It was the last amphibious operation in the European Theater of Operations. Once