A U-Boat Killed 763 American Soldiers on Christmas Eve in 1944. On that Christmas Eve in 1944, a German U-boat torpedo killed 763 American soldiers just five miles from the French coastline. It was the deadliest U-boat attack on American soldiers sent to fight in World War II.………(Excerpt) Read more at military.com ... by 2 posted onby dfwgator ("I am Charlie Kirk!") by 3 posted onby NorthMountain (... the right of the people to keep and bear arms shall not be infringed)To: NorthMountainWar is hell.