There were the primary aggressors of their very hostile relationship with other countries. Germany invaded Poland which wasn’t supported by France and Britain and as a result of this the Germans also invaded these countries.
They also broke the non aggression between them and the Soviet Union by invading the country also and several others such as Greece,Yugoslavia etc.
They were the primary leaders and cause of the Holocaust which happened.
It was the Patriot Victory at Saratoga that brought these two nations together in an open alliance. Of course the Americans and French were already somewhat allied because France was also at war with Great Britain during the American Revolution.
The Battle of the Bulge, also known as the Ardennes Counteroffensive, was a major German offensive campaign on the Western Front during World War II, and took place from 16 December 1944 to 25 January 1945.
