However, in the offensive on July 1st, the Armored troops led by General Guderian did not coordinate with the actions of the infantry.
Amid skepticism from the German infantry, Guderian explained that he had not received any orders from the Führer, which allowed his Armored units to rest for two days.
This also gave the French Army an opportunity.
On the afternoon of July 1st, an overzealous German infantry division launched an attack and was surrounded by two French infantry divisions and one Tank brigade, with both parties engaged in fierce fighting that ultimately ended in a victory for the French Army.
This was also the first time the French Military managed a direct and successful assault on a German division-level formation.
The halt in the advance of the Armored troops and the failure of the infantry created sufficient opportunities for the Dunkirk evacuation.