Defiance is a 2008 American war film directed by Edward Zwick set during the occupation of Belarus by Nazi Germany. The screenplay by Clayton Frohman and Zwick was based on Nechama Tec's 1993 book Defiance: The Bielski Partisans, an account of the Bielski partisans, a group led by Polish Jewish brothers who saved and recruited Jews in Belarus during the Second World War.
