The answer is Blitzkrieg. Blitzkrieg means "lightning war". It is a military tactic that was designed to disorganized enemies in war. During that war on Sept 1, 1939, Germany invaded Poland. They were lead by mobile warfare, like tanks. They had aerial support and soldiers heavily armed with ammunition. They attacked enemy forces with short and powerful attacks and dislocated them by using speed and making them fall for their trip. Because of this strategy, defenders were not able to fight back against their attacks