Cominform (kŏm`ĭnfôrm) [acronym for Communist Information Bureau], information agency organized in 1947 and dissolved in 1956. Its members were the Communist parties of Bulgaria, Czechoslovakia, France, Hungary, Italy, Poland, Romania, the Soviet Union, and Yugoslavia. The Cominform attempted to reestablish information exchanges among the European Communist parties that had lapsed since the dissolution (1943) of the Comintern Comintern (kəmĭntārn`) [acronym for Communist International], name given to the Third International , founded at Moscow in 1919.
..... Click the link for more information. . Its decisions were not binding, nor was membership obligatory for Communist parties. It was not a reconstitution of the Comintern, only a setting up of information contacts. Its chief function was the publication of materials designed to demonstrate the unity of its members. In 1948 the Cominform expelled the Yugoslav Communist party because of the defiance by Marshal Tito Tito, Josip Broz (yô`sĭp brôz tē`tō), 1892–1980, Yugoslav Communist leader, marshal of Yugoslavia.
..... Click the link for more information. of Soviet supremacy. In 1956, as a gesture of reconciliation with Tito, the Cominform was dissolved.

Cominform

in full Communist Information Bureau

Agency of international communism founded under Soviet auspices in 1947. Its original members were the Communist Parties of the Soviet Union, Bulgaria, Czechoslovakia, Hungary, Poland, Romania, Yugoslavia, France, and Italy, but Yugoslavia was expelled in 1948. The Cominform's activities consisted mainly of publishing propaganda to encourage international communist solidarity. It was dissolved by Soviet initiative in 1956 as part of a Soviet program of reconciliation with Yugoslavia.