Blitzkrieg know was "Lighting war" is designed to create disorganization among army forces. Germany wanted to defeat their enemies in small wars they had to fight. Also, they used new "technology" which were bigger and better tanks, planes, and artillery. The Blitzkrieg was based on the "Schlieffen plan". Later on in Germany Heinz Guuderian deiced to build on that plan.
In this photo it shows some airplanes that were used during the Blitzkrieg. They have gotten better than the ones they had during WW1. These planes were able to carry multiple bombs at once.
Their tanks were bigger and stronger during the Blitzkrieg. You can see soldiers in these tanks in a single line. When they would go into these nations they would be in a line and there were many many tanks coming into the cities.
In this photo shown here, you can learn the strategy they used. First,they would attack the nation/city with tanks and army force. Then, they would force their way into these nations/ cities to take over. At last they would surround them and hope they will surrender with no fight.