It is springtime in 1944. Josiah, Marcus and countless other young men are trained and waiting. They practice getting in and out of boats over and over never knowing when their commanders call them if it is this time it will be the real thing. In a way, they are all sort of hoping the next time they get woken up to do the drill will actually be the real invasion. They all know their instructions backwards and forwards, but even that could not prepare them for what they encounter on the beach at Normandy; no one could prepare for the kind of devastation and terror that occurred on what came to be known as D-day during World War II.
If you enjoy war stories you might like other books by Walter Dean Myers, especially: Fallen Angels, and Sunrise Over Fallujah.