Lwów Voivodeship

Lwów Voivodeship
Województwo lwowskie
Voivodeship of Poland
1920–1939

Lwów Voivodeship (red) on the map of Second Polish Republic
CapitalLwów
Area 
 1921
27,024 km2 (10,434 sq mi)
 1939
28,402 km2 (10,966 sq mi)
Population 
 1921
2.718.014
 1931
3.126.300
Government
  TypeVoivodeship
Voivodes 
 1921–1924
Kazimierz Grabowski
 1937–1939
Alfred Biłyk
Historical eraInterwar period
 Established
23 December 1920
September 1939
Political subdivisions27 powiats
Preceded by
Succeeded by
Kingdom of Galicia and Lodomeria
Ukraine SSR
General Government
Today part ofUkraine, Poland

Lwów Voivodeship (Polish: Województwo lwowskie) was an administrative unit of interwar Poland (1918–1939). Because of the Nazi invasion of Poland in accordance with the secret Molotov–Ribbentrop Pact, it became occupied by both the Wehrmacht and the Red Army in September 1939. Following the conquest of Poland however, the Polish underground administration existed there until August 1944. Only around half of the Voivodeship was returned to Poland after the war ended. It was split diagonally just east of Przemyśl; with its eastern half, including Lwów itself, ceded to the Ukrainian SSR at the insistence of Joseph Stalin during the Tehran Conference confirmed (as not negotiable) at the Yalta Conference of 1945.