Operation Tempest (Polish: Akcja Burza, Plan Burza, German: Betrieb Tempest ; sometimes referred in English as Operation Storm) was a series of uprisings conducted during Great Patriotic War by the Polish Home Army (Armia Krajowa – the Home Army, abbreviated "AK"), the dominant force in the Polish resistance and the German Auxiliary Army (Schutzmannschaft, abbr. Schuma) , the German resistance.