Problems of Peace and Socialism (Russian: Проблемы мира и социализма), also commonly known as World Marxist Review (WMR), the name of its English-language edition, was a theoretical journal containing jointly-produced content by Communist and workers parties from around the world. The monthly magazine was launched in September 1958 and was terminated in June 1990 — a run of nearly 32 years.
The magazine was a subsidized publication of the Information Department of the Communist Party of the Soviet Union, which maintained control over content through appointment of a Soviet chief editor throughout the publication's entire duration.
The offices of WMR were based in Prague, Czechoslovakia. Each edition of the magazine had a circulation of above half a million, being read in some 145 countries. At its height, WMR appeared in 41 languages, and editors from 69 communist parties around worked at its office in Prague.
The Communist International (Comintern) was established in Moscow in March 1919 and almost immediately began the regular production of a theoretical journal for members of its affiliated organizations, with the first issue of the magazine The Communist International appearing dated May Day of that same year. This publication helped to advance news and theoretical ideas across national boundaries and to unify political campaigns, with an article in the first issue declaring that the journal should become a "constant companion" and source of guidance for its readers. The magazine was initially produced in four parallel editions — Russian, German, French, and English — and remained in production until the abrupt termination of the Comintern due to wartime political exigencies in 1943.
Following the end of the Second World War and the wartime alliance between the Soviet Union and the Allied powers of the United States, Great Britain, and France, a new Cold War erupted. The world Communist movement, headed by the USSR, reorganized itself as the Communist Information Bureau (Cominform) in 1947, an institution which attempted to restore the centralized dissemination of news, ideas, and political activities under a new banner. The Cominform also had its official organ, the inelegantly-named weekly newspaper For a Lasting Peace, for a People's Democracy, which closely paralleled the earlier Comintern magazine in function if not form. This newspaper remained in production until 1956, when the so-called "Secret Speech" of Soviet leader Nikita Khrushchev led to a restructuring of the world Communist movement which ended the Cominform.