Kata Kunci Pencarian:
- German–Polish declaration of non-aggression
- Non-aggression pact
- Soviet–Polish Non-Aggression Pact
- Molotov–Ribbentrop Pact
- Germany–Poland relations
- Anglo-Polish alliance
- 1939 German ultimatum to Lithuania
- Franco-Polish alliance
- Invasion of Poland
- Declarations of war during World War II
