What "new" battle tactic did the German army use successfully in the early years of World War II and explain how it worked.

Europe and was victorious for more than two years by relying on a new military tactic called the "Blitzkrieg" (lightning war). Blitzkrieg tactics required the concentration of offensive weapons (such as tanks, planes, and artillery) along a narrow front.

Explanation:

b: to eliminate competition from other farmers

i see, would you mind putting it as one?