Countries That Helped Warsaw (Poland) in 1939: Limited Allied Action, Soviet Invasion

During the 1939 invasion of Poland (start of WWII), Warsaw and Poland received no major direct military intervention from allies, despite treaties:

🇫🇷 France & 🇬🇧 UK (Western Allies)

• Declared war Sept 3, 1939—but launched only "Phony War" (Sitzkrieg).
• No ground/air operations on Polish soil.
• Provided: diplomatic support, intelligence, financial credits, naval blockade.
• Volunteers: Kościuszko Squadron (Polish pilots in RAF), individual pilots/sailors.
• Refused to send paid-for military transport planes through neutral Baltic.

🇸🇺 Soviet Union

• Invaded from east Sept 17, 1939 (Molotov-Ribbentrop Pact).
• Not an ally—co-aggressor with Germany.

🇷🇴 Romania, 🇭🇺 Hungary, 🇱🇹 Lithuania, 🇱🇻 Latvia

• Neutral or hostile; interned fleeing Polish troops/planes.

Result: Poland fought alone for 36 days. Warsaw surrendered Sept 28. Allies' inaction bred lasting Polish bitterness ("Western betrayal").