Wehrmacht: The Blitzkrieg. Blitzkrieg (German, literally lightning war) is a popular name for an operational-level military doctrine which employed mobile forces attacking with speed and surprise to prevent an enemy from implementing a coherent defense. The doctrines resulting in the blitzkrieg effect were developed in the years after World War I as a method to help prevent trench warfare and linear warfare. Blitzkrieg was first used on any serious scale by the German Wehrmacht in World War II.

http://www.experiencefestival.com/blitzkrieg_-_guderian_into_the_wehrmacht

http://en.wikipedia.org/wiki/Blitzkrieg

Pt 3