The Jewish Anti-Fascist Committee (JAC, Russian: Еврейский антифашистский комитет Yevreysky antifashistsky komitet, ЕАК) was organized by the Jewish Bund (labor union) leaders Henryk Erlich and Victor Alter, upon an initiative of Soviet authorities, in fall 1941; both were released from prison in connection with their participation. Following their re-arrest, in December 1941, the Committee was reformed on Joseph Stalin's order in Kuibyshev in April 1942 with the official support of the Soviet authorities. It was designed to influence international public opinion and organize political and material support for the Soviet fight against Nazi Germany, particularly from the West. In 1952, as part of the persecution of Jews in the last year part of Stalin's rule (for example, the "Doctors' plot"), most prominent members of the JAC were arrested on trumped-up spying charges, tortured, and executed by firing squad after a secret mock trial. Stalin and elements of the KGB were worried about their influence and connections with the West. They were officially rehabilitated in 1988.
Solomon Mikhoels, the popular actor and director of the Moscow State Jewish Theater, was appointed the JAC chairman. The JAC's newspaper in Yiddish language was called Einigkeit (אייניקייט "Unity", Cyrillic: Эйникейт).
The JAC broadcast pro-Soviet propaganda to foreign audiences, assuring them of the absence of anti-Semitism in the USSR. In 1943, Mikhoels and Itzik Feffer, the first official representatives of the Soviet Jewry allowed to visit the West, embarked on a seven-month tour to the United States, Mexico, Canada and Britain to increase their support for the Lend-lease. In the US, they were welcomed by a National Reception Committee chaired by Albert Einstein and by B.Z. Goldberg, Sholem Aleichem's son-in-law, and American Jewish Joint Distribution Committee. The largest pro-Soviet rally ever in the United States was held on July 8 at the Polo Grounds, where 50,000 people listened to Mikhoels, Fefer, Fiorello La Guardia, Sholem Asch, and Chairman of World Jewish Congress Rabbi Stephen Wise. Among others, they met Chaim Weizmann, Charlie Chaplin, Marc Chagall, Paul Robeson and Lion Feuchtwanger.