 The role of the German "Einsatzgruppe B" remains the subject of debate.After the end of World War II, a series of violent antisemitic incidents occurred against returning Jews throughout Europe, particularly in the Soviet-occupied East where Nazi propagandists had extensively promoted the notion of a Jewish-Communist conspiracy (see Anti-Jewish violence in Poland, 1944–1946 and Anti-Jewish violence in Eastern Europe, 1944–1946).Anti-Jewish riots also took place in Britain in 1947.