German-Soviet invasion of Poland

The German-Soviet invasion of Poland in September 1939 was a coordinated attack that marked the beginning of World War II. Nazi Germany, led by Adolf Hitler, invaded from the west, while the Soviet Union, under Joseph Stalin, invaded from the east, after signing a secret non-aggression pact known as the Molotov-Ribbentrop Pact. This division of Poland was unprovoked and resulted in the country being partitioned between the two powers. The invasion aimed to expand their territories and establish dominance, leading to widespread devastation and the start of a global conflict.