# Invasion of Poland (1939)

URL: https://germany-history.com/timeline/1939-invasion-of-poland
Location: Poland
Categories: battle, main-event

After the Molotov-Ribbentrop Pact with the Soviet Union, Germany invaded Poland on 1 September 1939. Britain and France declared war. The Soviets invaded from the east.

## Why it matters
It began the deadliest war in history.

Ruler at the time: [Adolf Hitler](https://germany-history.com/rulers/adolf-hitler)

## Sources
- [Wikipedia – Invasion of Poland](https://en.wikipedia.org/wiki/Invasion_of_Poland)
- [Wikipedia – Molotov–Ribbentrop Pact](https://en.wikipedia.org/wiki/Molotov%E2%80%93Ribbentrop_Pact)
- [Encyclopaedia Britannica – Invasion of Poland](https://www.britannica.com/event/Battle-of-Poland)
- [Encyclopaedia Britannica – Molotov–Ribbentrop Pact](https://www.britannica.com/event/German-Soviet-Nonaggression-Pact)