 He assessed blitzkrieg as a "typical cavalry mission" and suggested expanding the 7th Cavalry Brigade along German panzer division standards, under full Cavalry control.The proposal, delivered at the War College in September 1939, was bundled with the demand that new armored units should be formed from scratch rather than converted from horse troops.In the first half of 1940 Herr embraced the concept of "horse-mechanized formations" and called for expansion of cavalry brigades into divisions.