Hitler could not have gone to war without fuel and oil additives supplied by an American oil company. There were irregular shipments throughout the war. The US government knew about these and did nothing due to the connections of the executives involved. Trucks produced at a GM owned plant staffed until quite late with American executives were essential to the invasions of Poland, France and Russia.
Here is just one source...
https://www.youtube.com/watch?v=SMKnH2BlkBA
It was a Democrat in charge then, too.
Corruption and conflict profiteering follows Democrat leaders.
How can such a bungle occur?