Using the Nurenburg excuse used by those Nazis convicted of attrocities against humanity, this author has the nerve to claim the U-boat sailors "were just doing their job." She takes obvious delight in the sinking of each American ship. She calls our Navy "inexperienced" and the Nazis "experts." Just before her evil heros finally start faltering later in the war, she discontinues her narative. The perspective of this book is only a few steps away from "Springtime for Hitler" except she doesn't mean it as a joke. Avoid it at all cost.