Flashback: WWI German forces pressed into France, or as they would call it then, the Western Front. The German's offense lasted from 1914-1918 gaining very little land.
1940: Hitler demanded to take control over France, and his plan was to take it under he control quickly. The plan was march into France using Blitzkrieg, poring troops and every tank the German army had into France. During the assault only 6 men died that were from the German army. In what had taken the Germans in WW1 which was several days to across the River Meuse, the Germans could cross that same river in one day. The French were mind blowed how quick the German took, to cross the broader and then the river in one complete day...
I think the Germans were completely successful on pushing ever soldier into France as quickly as possible. Great move! Much intelligence must have been planned for every German to get into the country with hardly losing any men.