I love this one!

21. “The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous.” — Comment of Aide-de-camp to Field Marshal Haig, at tank demonstration, 1916

Being an avid fan of Heinz Guderian the father of the panzer divisions and a large part of modern warefare. He had to deal with such comments and hard headed individuals, but they were largely silenced by his achevments on the battlefield. In the French champaign Guderians 10th panzer, and (off the top of my head) he had the 5th panzer and SS division "Das Reich", were able to slice through the French and British lines with such speed that Hitler and the German OKH were scared to death. The famous halt order resulted from this, and one little known French colonels attack... The French thought tanks were an infantry support weapon, except for one little known Colonel named Charles de Gaulle.

De Gaulle was the one commander the French had but failed to take advantage of early in the war, and as a result wasted there best forces. He was able to scare the German high command badly with his flank attack on Rommel's famous 7th Panzer Division, known as the "ghost division". Rommel had to personaly man a gun line of 88's to stop the French tanks.

At the time the German army was the finest in the world bar none.