In less than 24 hours, more than 5,000 ships crossed the English Channel, along with thousands of tanks and landing craft and ... their harrowing stories, "D-Day's Sunken Secrets" unfolds a ...

U.S. Army troops crowd into a navy landing craft infantry ship during the D-Day Invasion of Normandy, France on June 6, 1944. read more US Navy/Getty Images / Getty Images ...

Among the 150,000 soldiers who landed on and fought across the hostile beaches of Normandy on D-Day, June 6, 1944, were 1,000 members of a new, specially trained unit – the U.S. Army Rangers.