From one war to another -- From the German and Soviet invasions of Poland to the German attack in the West, September 1, 1939 to May 10, 1940 -- The world turned upside down -- The expanding conflict, 1940-1941 -- The Eastern Front and a changing war, June to December, 1941 -- Halting the Japanese advance, halting the German advance; keeping them apart and shifting the balance: December 1941 to November 1942 -- The war at sea, 1942-1944, and the blockade -- The war in Europe and North Africa 1942-1943: to an from Stalingrad; to and from Tunis -- The home front -- Means of warfare: old and new -- From the spring of 1943 to summer 1944 -- The assault on Germany from all sides -- Tensions in both alliances -- The halt on the European fronts -- The final assault on Germany -- The war in the Pacific: from Leyte to the Missouri -- Conclusions: the cost and impact of war.