This series has been fully up-rezzed to HD, re-voiced, new editing to sort errors discovered and re-balanced to have fewer recaps for binge watchers rather than 24 weeks of serial TV.
As Hitler and the Germans focused on Russia, the situation in the Pacific developed to epic proportions when the Japanese air force attacked the American Naval Fleet, stationed at Pearl Harbor on the 7th of December.
This immediately brought the USA into the fray, and back in the European Theater of War, Hitler now had a great deal more than Russia to worry about.