This study of the Polish resistance movement chronicles the operations of various factions from WWII through the postwar battle for power. The Polish partisan army famously fought with tenacity against the Wehrmacht during World War II. Yet the wider story of the Polish underground movement, which opposed both the Nazi and Soviet occupying powers, has rarely been told. In this concise and authoritative study, historian David Williamson presents a major reassessment of the actions, impact and legacy of Polish resistance. The Polish resistance movement sprang up after the German invasion of 1939. As the war progressed, it took many forms, including propaganda, spying, assassination, disruption, sabotage and guerrilla warfare. Many groups were involved, including isolated partisan bands, the Jewish resistance, and the Home Army which confronted the Germans in the disastrous Warsaw Uprising of 1944. Going beyond the Second World War, Williamson's graphic account chronicles the clandestine civil war between the Communists and former members of the Home Army that continued until the Communist regime took power in 1947.