In this timeline, Nazi German priorities in regards to the German nuclear program (or "Uranverein"; Uranium Society) change to supporting an effort to produce nuclear power, and later, nuclear weaponry. So, in accordance with this alternate history, a number of physicists working within the nuclear program do not get called to military training, or warfare, and over the course of the war, the program slowly centralizes within the German government, culminating with a bomb test in Poland during the February of 1945, and a bomb drop over Poznań, occupied Poland.
February 26, 1945 - Initial concern about atomic bombs within the scientific field gave way following the Blitz-Sturm Test (Lightning Storm Test); the worlds first detonation of a nuclear device. Conducted by the German Army, it took place 26 km from the Norwegian town of Rødberg, and was the culmination of the six year German nuclear program. The device, nicknamed Spitzenreiter Bombe (Leader's Bomb), it detonated with the force of 22 kilotons of TNT.
February 27, 1945 - After hearing of the results of the Blitz-Sturm test, Adolf Hitler permits the use of the atomic bomb against the Allied nations, with a number of targets presented to him, the most striking of all was the Soviet capital; Moscow.