World War II was the largest and most violent armed conflict in history of mankind.   Highly relevant today, World War II has much to teach us, not only about the profession of arms, but also about military preparedness, global strategy, and combined operations in the coalition war against fascism.   World War II was waged on land, on sea, and in the air over several diverse theaters of operation for approximately six years. The essay is one of a series of campaign studies highlighting those struggles that are designed to introduce you to one of the Army's significant military feats from that war.