In late March 1939, the Wehrmacht was preparing to circle around Paris from the north. They approached the city of Beauvais from the south intending to drive through and breakout into the open countryside.
Just south of the city, near the village of Allonne, the Allies were waiting. Frencharmour, backed up by Britishfighters, launched a successful counter attack by using tanks on mass, while the RAF provided close air support for the infantry. The counter attack was not only successful in stopping the German Advance, but it also forced them to retreat. When the battle was over, Paris had not only been saved, but so had France itself.