Germany used this first during the Invasion of Poland. They won every fight for two years. During this period of time they took over Poland, Denmark, Norway, Belgium, the Netherlands, Luxembourg, France, Yugoslavia, and Greece. But , they did not take over Britain as they wanted to. Also, they invaded Soviet Union in 1941. Also one of their successes was the FM radios. In 6 weeks they crushed four army nations combined.
In this photo you can see how people are leaving from Poland. Also, you can see some damage that the Blitzkrieg has caused with their attack during the Invasion of Poland.
German army forces are marching in to Poland ready to take over. Also they are ready to practice their strategy that Hitler hoped would be successful .
In this political cartoon we see Hitler hugging the world. The caption says "Germany shall never be encircled ". What this is trying to say is that German should not be a weak nation and he will not allow Germany to be attack in any certain way.