No one knew it was going to be that bad. World War II killed some 60 million people—20 million of them soldiers—and inflicted wounds, bereavement, poverty and suffering on countless others. But such destruction was an impossible to imagine in advance as it was for young pilots-in-training to imagine their coming fiery deaths; or for Jews to foresee their last moments in the gas chambers; or for parents to imagine their children killed by the mortars and bullets and other munitions that factories churned out in such enormous quantities. As impossible, perhaps, as it is for us to imagine a disaster of similar scale in our future. The War presents an unforgettable mosaic of memoirs from soldiers, citizens and historians, detailing the immense tragedy that stretched from the Western Front to the Pacific Theater.