How many Polish soldiers fought World War 2?

Approximately 1.5 million Polish soldiers fought in World War II, including those who were part of the Polish Armed Forces in the West and the Polish Army in the East. After the invasion of Poland in 1939, many soldiers escaped to France and later to the United Kingdom, where they continued to fight alongside Allied forces. Additionally, Polish troops participated in various campaigns across Europe, contributing significantly to the war effort against the Axis powers.