The Soviet tenor Victor Ivanovich Nikitin was so good, that when he sang to the Soviet troops at the Eastern front in WWII, German troops on the other side stopped shooting to listen to him.
During WWII, more people died manufacturing V-2 Rockets than were killed by its use.
During the WWII naval battle of Leyte Gulf, an American pilot made repeated attack runs against one of the largest battleships in history, Japan’s Yamato. After running out of ammunition, the pilot continued attacking, throwing a Coke bottle and other loose cockpit articles at the ship’s bridge.
Russian pilot Semyon Bychkov served both in the Soviet Air Forces and the Luftwaffe and was stripped of all Soviet awards posthumously.
The first man to perform cardiac catheterization, did it on himself then walked downstairs to the radiology department to take the x-ray to prove you would not die. He was fired, became a Nazi, then won the Nobel Prize.
Captain Richard Antrim was captured in 1942 & held as a POW. During this time, he impressed with his engineering skills & helped the Japanese arrange trenches. From the air, the trenches spelled out “US”, warning bombers not to attack and that it was a POW camp, saving hundreds of lives.
Tea was so important for morale in the British army that in 1942 the UK bought the entire world’s crop of tea.
During WWII, Coca-Cola lobbyist Ben Oehlert convinced the government to allow their product to be given to the troops as an alternative to alcohol in order to be excused from sugar rationing, thus potentially saving the company from going under.
One of the very few surviving ships from the 1944 D-Day invasion is still in service as a car ferry in Connecticut.
There was a magician by the name Jasper Maskelyne who used “magic” to help against the nazis in WWII. He would hide tools and maps in everyday objects and fool the Nazis by using illusions.