The correct answer is It launched extremely fast-paced invasions of its neighbors.
Blitzkrieg (lightning war, in German) was a war tactic used by the German army during World War II. It was considered innovative in the initial phase of the war and contributed largely to the victories won by the Germans.
The blitzkrieg coordinated attacks by infantry, aviation and armored vehicles with great speed and strength, in order to open enemy lines of defense and surround enemy troops to force their surrender.
In the blitzkrieg, German forces used the Luftwaffe to carry out attacks behind opposing lines of defense in order to destroy lines of communication and hinder the transmission of orders. In addition, the use of war aviation was important for the defense of air strikes and to promote the destruction of the fields of few opponents.