450 The Gadget

On the Western Front, the Allies were probing the German defensive line. On the Eastern Front, the Red Army advanced past the 1939 border and into Germany itself.

When the Americans landed on the Philippine island of Leyte, the Japanese Navy executed a plan intended to cut off and isolate Allied ground forces on the island.

On October 20, 1944, Douglas MacArthur made good on his famous promise.

Bernard Montgomery proposed a risky operation that just might have allowed the Allies to break through the German defensive line. Meanwhile, Adolf Hitler was planning a risky operation of his own.

The Western Allied advance in August 1944 was breathtaking, but it stopped short at the German border as the German Army rebuilt its defenses and Allied supply lines became strained to the limit.

By 1944, a German defeat seemed inevitable. In August, Romania defected from the Axis and joined the Allies. Within weeks, Bulgaria followed suit, while Finland agreed to an armistice with the USSR. This left Hungary as Germany's sole remaining ally in Europe, and Hungary only stayed loyal because of German military intervention.

The British view on aerial bombing over Germany held that area attacks on German cities were the only effective form of attack. The Americans preferred to target specific sites crucial to the German war effort, an approach the head of RAF Bomber Command dismisses as "panacea targets."

The Second World War offered African Americans new opportunities and new political clout.

The United States had its Manhattan Project. Germany had its rockets.

By 1944, the United States had developed the facilities to produce U-235 and plutonium in sufficient quantities. The last problem was how to design and build a bomb that would detonate an atomic explosion when you wanted it, but not before.