Polish Defensive War

The Polish Defensive War refers to the military campaign fought by Poland against the invasion of Nazi Germany starting on September 1, 1939, marking the beginning of World War II. Despite having a valiant defense, Polish forces were quickly overwhelmed by Germany's superior tactics and technology, including the use of blitzkrieg strategies—fast and coordinated attacks combining air and ground forces. The war ended with Poland's defeat on October 6, 1939, leading to the country's occupation by German and Soviet forces, significantly impacting the course of the war and European history.