Operation Ostra Brama

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Operation Ostra Brama
Part of Operation Tempest in the Eastern Front of World War II
Dislocation of Polish and German units at the start of the fighting.
Date 7–13 July 1944 Location Vilnius, present-day Lithuania (1922–1939 Polish: Wilno, Second Polish Republic) 54°41′N 25°19′E / 54.683°N 25.317°E / 54.683; 25.317 Result Operation failed[1] Territorial changes Soviet occupation of Vilnius since July 13
Belligerents
Polish Underground State Home Army	Germany
Commanders and leaders
Aleksander Krzyżanowski Antoni Olechnowicz Czesław Dębicki [pl] Mieczysław Potocki [pl]	Reiner Stahel
Strength
~6,000[1] – 9,000[2]	Existing troops, plus 17,700 as reinforcements[1]

Part of a series on the
Polish Underground State
History of Poland 1939–1945
Authorities Government Administration Parliament Courts
Political organizations Major parties Polish Socialist Party People's Party National Party Labour Party Minor parties Camp of National Unity Democratic Party Jewish Labour Bund Hashomer Hatzair Betar (Zionist youth) Opposition National Radical Camp Polish Workers' Party
Military organizations Home Army (AK) Service for Poland's Victory (SZP) Armed Resistance (ZWZ) Gray Ranks National Security Corps (PKB) Mostly integrated with Armed Resistance and Home Army Gwardia Ludowa WRN Peasant Battalions Partially integrated with Armed Resistance and Home Army National Military Organization National Armed Forces Camp of Fighting Poland Pomeranian Griffin Confederation of the Nation Non-integrated but recognizing authority of Armed Resistance and Home Army Jewish Combat Organization Jewish Military Union Opposition Armia Ludowa
Related topics Cultural activities Education History of Poland during 1939–1945
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Operation Ostra Brama (Polish: Operacja „Ostra Brama”, lit. 'Operation Gate of Dawn') was the Polish Home Army's attempted takeover of Vilnius (Polish: Wilno) in wake of the German Wehrmacht's evacuation, ahead of the approaching Soviet Red Army's Vilnius offensive. A part of a Polish national uprising, Operation Tempest, the action happened on 7–13 July 1944.^[2] The operation's main goal was propagandistic – to claim Vilnius for Poland by retaking it before Soviet arrival.^[3] Despite the operation's failure, the Polish government-in-exile continued its political line that led to the catastrophic Warsaw Uprising on 1 August 1944.