What type of offensive did Germany use to invade Poland?

Germany employed a military strategy known as "Blitzkrieg," or "lightning war," to invade Poland in September 1939. This approach combined fast-moving and coordinated attacks using infantry, tanks, and air support to overwhelm Polish defenses quickly. The offensive began on September 1, 1939, with a surprise attack that aimed to achieve rapid victories and minimize prolonged combat. The effectiveness of Blitzkrieg resulted in the swift defeat of Poland, marking the start of World War II.