What was the new kind of war that the Germans unleashed on Poland in 1939?

a.

Duetschwar

c.

fast war

b.

Blitzkrieg

d.

mobile war

The right answer is b.

Blitzkrieg, a German word meaning "Lightning war", is a warfare method consisting of short, fast and powerful attacks made in order to surprise the opponent and break their defenses. Nazi Germany used this in the German invasion of Poland in 1939, encircling and destroying Polish forces with concentrated and changing power.