A good read on WWII is written by Jerome T. Hagen, BG (R) USMC. BG(R) Hagen's book, America at War Vol 1, War in the Pacific presents some incredible facts on the roots of the war. Much of what he reveals in the book are well known facts of history of the years, decades and almost a century before the attack on Pearl Harbor of how Japan invaded other countries, and the associated war crimes committed. Also the connection with the USSR, & Nazi Germany.