A roundup (Polish: łapanka, [waˈpanka] (listen); French: rafle or attrapage; Dutch: razzia, Czech: lapanka, Greek: μπλόκο, bloko, Russian: Облава, oblava, Serbian: Лапање, lapanje) was a widespread German World War II security and economic exploitation tactic used in occupied countries, especially in German-occupied Poland in which the SS, Wehrmacht and German police took captive at random thousands of civilians on the streets of subjugated cities. The civilians were captured in groups of unsuspecting passers-by or kidnapped from selected city quarters that had been surrounded in advance by German forces.[1]