Rommel, the first 3 ys of WWII were spectacular. He went from the obscurity of a mere division command (one among 140) to an army command; rank of Field-Marshal. His leadership of the 7th Panzer Div. during the invasion of France had proven his ability, leading to rapid promotion. An account of the invasion of France asserts that Rommel played a far more important role in the breakthrough on the Meuse than Heinz Guderian did.