Nuclear destruction of Germany (Operation European Freedom)

This grand finale to one of the longest and bloodiest war in human history was decided in 5 minutes.

Background
The USA had knowledge of nuclear weapons and their capabilities, and had already completed the first Hydrogen bomb. Germany on the other hand, suffered constant sabotage attempts by partisans and the CIA.

After Boadicea's success, German forces were recalled from Africa and the Balkans (their dirty work was planned to be done by local collaborators, specifically South Africans and the Ustashi respectively). The CIA knew that any full scale land invasion of Germany, even with Nerve Gas, would turn into a slaughterhouse, with a possible return to trench warfare.

So president Truman took the very hard decision to order the Hydrogen bomb to be deployed on several cities. Four B-52s were prepped for the task, while two would be deployed by prototype nuclear missiles.

Beforehand, with representatives of China, India and Britain at a conference in Austin, Truman gave a warning to Hitler that unless he surrendered, Germany would suffer "untold destruction on an unimaginable scale"

Hell's flames
On Adolf Hitler's birthday, the USA simultaneously ordered all 4 bombers and 2 missiles to launch their respective attacks on Germany. By noon, 6 fireballs could be reported in Danzig, Berlin, Frankfurt, Hamburg, Munich and Leverkusen, killing approximately 10 million people and leaving vast tracts of Germany irradiated for generations to come.

Controversy
There has been significant debate over whether or not the USA's actions counted as war crimes.