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Eastern Bloc
Republics of the USSR Armenia Azerbaijan Byelorussia Estonia Georgia Kazakhstan Kirghizia Latvia Lithuania Moldavia Russia Tajikistan Turkmenia Ukraine Uzbekistan
Allied and satellite states Afghanistan Albania (until 1961) Angola Benin Bulgaria China (until 1961) Congo Cuba Czechoslovakia East Germany Ethiopia Grenada Hungary Kampuchea Laos Mongolia Mozambique North Korea Poland (until 1989) Romania Somalia (until 1977) South Yemen Vietnam (North Vietnam, PRG) Yugoslavia (until 1948)
Related organizations Warsaw Pact Comecon Cominform World Federation of Trade Unions World Federation of Democratic Youth
Opposition Anti-Soviet partisans Albania Bulgaria Croatia Poland Romania Serbia Ukraine Guerrilla war in the Baltic states Soviet occupation Estonia Latvia Lithuania Operation Jungle Protests and uprisings Poland 1944–1989 Poznań 1956 1980–89 Plzeň 1953 East Germany 1953 Georgia 1956 Hungary 1956 Novocherkassk 1962 Prague 1968 Invasion Moscow Czechoslovakia 1976–1990 Romania 1977 Kazakhstan 1986 Brașov 1987 Tbilisi 1989 Ukraine 1989–1991 Baku 1990 Lithuania 1991 Riga 1991 Dissent Soviet Poland East Germany to Hong Kong North Korea
Cold War events Marshall Plan Czechoslovak coup Tito–Stalin split Berlin Blockade Korean War Secret Speech Sino-Soviet split Albanian–Soviet split De-satellization of the Socialist Republic of Romania Berlin Wall Cuban Missile Crisis Vietnam War Cuban intervention in Angola Afghan War 1980 Moscow Olympics 1984 Los Angeles Olympics Gulf War
Fall Singing Revolution Polish Round Table Agreement Revolutions of 1989 Fall of the Berlin Wall January Events Barricades in Latvia Breakup of Yugoslavia Yugoslav Wars End of the Soviet Union Post-Soviet conflicts Fall of communism in Albania Dissolution of Czechoslovakia
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The Information Bureau of the Communist and Workers' Parties (Russian: Информационное бюро коммунистических и рабочих партий, romanized: Informatsionnoye byuro kommunisticheskikh i rabochikh partiy), commonly known as Cominform (Russian: Коминформ), was a co-ordination body of Marxist-Leninist communist parties in Europe during the early Cold War that was formed in part as a replacement of the Communist International. It worked to ensure that communist governments in the Soviet bloc operated according to Stalinist principles, rather than those of alternative forms of communism. The Cominform was dissolved during de-Stalinization in 1956.

The Information Bureau of the Communist and Workers' Parties was unofficially founded at a conference of Marxist–Leninist communist parties from across Europe in Szklarska Poręba, Poland in September 1947. Joseph Stalin, the leader of the Soviet Union, called the conference in response to divergences among communist governments on whether or not to attend the Paris Conference on the Marshall Plan in July 1947. It was founded with nine members: the Communist Party of the Soviet Union, the Bulgarian Communist Party, the Communist Party of Czechoslovakia, the Hungarian Communist Party, the Polish Workers' Party, the Romanian Communist Party, the Communist Party of Yugoslavia, the French Communist Party, and the Italian Communist Party. The organization was commonly known as Cominform, an abbreviated form of the Communist Information Bureau, itself a shortened version of the official name.

Cominform was officially established on 5 October 1947 with the intended purpose of coordinating actions between European communist parties under the direction of the Soviet Union. Cominform was not intended to be a replacement or successor to the Comintern, the international organization that advocated world communism and dissolved in 1943, but was considered a type of successor. However starting in 1950, Stalin started to push for the Cominform's functions to be expanded greatly, almost to the scale of the Comintern. This push ceased after his death.^[1] Cominform was not a world communist party and did not have subordinates or power, limiting itself to its newspaper, For a Lasting Peace, for People's Democracy! published in several languages, and to one goal: "to organize an exchange of experience, and where necessary to coordinate the activity of the Communist parties, on the basis of mutual agreement."^[2] A vast array of articles was published, including some not published by members such as the Canadian Communist Party.^[3] Cominform was to organize the propagation of communist interests and repel the expansion of anti-communism in the aftermath of World War II and the subsequent Cold War, dividing the world (per the Zhdanov Doctrine) into imperialist and anti-imperialist factions.^[4][5] The French and Italian communist parties were specifically tasked by Cominform with the obstruction of the implementation of the Marshall Plan and the Truman Doctrine in Western Europe.^[6] From a global standpoint the Cominform strived/ventured to unite the Communist parties against the copious policies which threatened to empower Western Europe to oppose communism, mainly through pinpointing/underlining the importance of national independence and peace. More important though was that the Cominform had to remain small in size (Eurocentric Organization),^{[citation needed]} in order to preserve its maneuverability and efficient centralisation, mainly due to the fact that it operated as a propaganda tool controlled by the International Communist movement to instruct and inform the leading members of the different national parties. Its members were communist parties and as such, would guarantee the safeguard the monolith of the communist movement.^[7] The primary reason for the Communist Party of Greece not being a member was fears of western powers using this to paint the KKE as foreign insurgents, although they did contribute to Cominform publications.^[8] Because of the Chinese Civil War, the Communist Party of China was also not invited for a similar reason as Greece.^[8] The Communist Party of China nonetheless adhered to Cominform policy. In a conversation with Liu Shaoqi, Stalin indicated that he was not opposed to China joining the Cominform, only that it was unnecessary at the present time.^[9] There were plans for China to lead an Asian Cominform of some sort,^[10][11] but this idea was seemingly forgotten with the death of Stalin and weakening of the Cominform.

Cominform was initially located in Belgrade, Yugoslavia, but after the Tito–Stalin split expelled Yugoslavia from the group in June 1948, the seat was moved to Bucharest, Romania. Officially, Yugoslavia was expelled for "Titoism" and anti-Sovietism, based on accusations of deviating from Marxism-Leninism. Yugoslavia was considered to be heretical for resisting Soviet dominance in its affairs and integration into Eastern Bloc as a Soviet satellite state.^[12] It is believed that one of the most decisive factors that led to the expulsion of Yugoslavia was their commitment to supporting communist insurgents^{[citation needed]} in the Greek Civil War, in violation of the "Percentages agreement" between the Soviet Union and United Kingdom, and their decision to station troops in Albania.^[13] However, this was not the official line of reasoning from the USSR. In fact, Cominform publications accused Yugoslavia of supporting the anti-communist insurgents in the Greek Civil War.^[14][15] The expulsion of the Communist Party of Yugoslavia from Cominform initiated the Informbiro period in Yugoslavia's history. Cominform's newspaper was originally printed in Belgrade; it was moved to Bucharest after the expulsion of Yugoslavia.^[7]

From 1950, Cominform became rapidly irrelevant after the victory of the People's Republic of China in the Chinese Civil War weakened Europe as the center of communism. Cominform, composed of entirely European parties, was rendered largely useless in Soviet influence over the international communist movement.^{[citation needed]} No attempts were made to reorganize Cominform and its decline accelerated drastically after the death of Stalin in March 1953. Meanwhile, the Soviets had gradually replaced Cominform with more effective and specialized organizations to exert their influence, such as the Council for Mutual Economic Assistance (COMECON) in 1949 and the Warsaw Pact in 1955. Cominform was officially dissolved on 17 April 1956 in a decision by the Central Committee of the CPSU, prompted by the Soviet rapprochement with Yugoslavia and the De-Stalinization process following the rise of Nikita Khrushchev as Stalin's successor.^[6]

There are four recorded meetings of the Cominform, before 1956.

This founding meeting took place on 22–23 September 1947 in Jelenia Góra, Poland. Members present at the first meeting were Kardelj and Djilas for Yugoslavia, Chervenkov and Poptomov for Bulgaria, Gheorghiu-Dej and Anna Pauker for Romania, Farkas and Revai for Hungary, Gomułka and Minc for Poland, Zhdanov and Malenkov for the U.S.S.R., Duclos and Fajon for France, Slánský and Bašťovanský for Czechoslovakia, and Longo and Reale for Italy. Zhdanov was chairman, Gomulka was appointed vice-chairman.^[16] Gomulka's was given the task of making the first report, titled "On the interchange of experience and co-ordination", with the second being Zhdanov's report on the global status quo. In the report "On co-ordination", the key points, apart from Poland's evaluation, seem to be criticisms of the French and Italian communist parties after the emancipation, due to their missing the opportunity to seize power, contrary to the Eastern Europeans, who proved their political superiority by quickly dealing with the issue of ensuring their dominance on the government. The significance of this criticism is shown by the regret of the French and Italian representatives, accompanied by the following statement in the final resolution: "the need for interchange and voluntary co-ordination of action in the various parties is particularly keenly felt at the present time". Zhdanov's report has been of critical importance to the communist ideology. After mentioning the original disbandment of the Communist International in May 1943, Zhdanov pointed out the fact that "the present position of the communist parties had its shortcomings. [...] The need for mutual consultation and voluntary co-ordination had become particularly urgent at the present juncture". Reason to this, according to Zhdanov, can be found in the new global state, which has led to new tasks passed down to the communist parties of the new democratic states, as well as the "fraternal communist parties of France, Italy, Great Britain and other countries". Furthermore, given that the dissolution of the Comintern had been understood by some people as the subsequent elimination of all ties, "continued isolation may lead to a slackening of mutual understanding and at times even to serious blunders". The first part of Zhdanov's report was included in a published declaration, which designates the task of the communist parties as "taking into their hands the banner of defense of national independence and sovereignty of their countries". The following part, in combination with Gomulka's report, formed the preamble of the resolution, which underlined the following five key points; 1) that an Information Bureau should be established, which would consist of spokesmen of the nine participating communist parties, 2) that it should be assigned the task of interchanging information and coordination, if need be, 3) that the Bureau should consist of two delegates from each of the nine parties, 4) that the Bureau should produce a journal, which at first would be published every two weeks, and weekly after a while, 5) that the Bureau should be situated in Belgrade, Yugoslavia. But the two Western communist parties (the French and the Italian) were assigned with two tasks, which were; 1) to claim the leadership of their countries once again and prepare for a fierce fight, and 2) take necessary measures to ensure that the "American Policy" would not be implemented in Western Europe, whatever those measures were. Their ineffective policy had to be changed into a policy of strikes, mass-action and sabotage. The first general "attack" was launched in France on 18 November 1947, and in Italy on 12 November. Both turned out to be quite violent. But the wave of attacks ended by the end of the year, due to the fact that the workers had failed to carry out the communist instructions and the two communist parties were not willing to continue the fight. Strikes continued to be carried out sporadically, but without the support of the public.

The second meeting occurred in Belgrade on 1 February 1948. During this meeting, a permanent editorial board was chosen for the newspaper "For a Lasting Peace, for a People's Democracy!", which was first issued in Belgrade on 1 November 1947. This editorial board was under the leadership of Pavel Yudin. He was succeeded by Mark Mitin, after the Yugoslav expulsion.

A third meeting occurred in Romania on 28 June 1948. This resulted in the expulsion of the Yugoslav Communist Party. It also led to the relocation of the Cominform's headquarters to Bucharest and initiated the great campaign of transforming the programs and cadres of the Eastern European communist parties. In a unanimous resolution, the eight communist parties agreed that the Yugoslavian communist party had "pursued an incorrect line on the main questions of home and foreign policy, a line appropriate only to nationalism, and which represented a departure from Marxism-Leninism". They approved the actions of the Russian communist party and condemned Yugoslavia's agricultural policy, which sidelined the class differentiation, "regarding the individual peasantry as a single entity and even asserting that the peasantry was the most stable foundation of their state" - a role meant for the proletariat. Since Yugoslavia refused to abide by the Cominform's discipline and ignored its criticism, they had receded from the "family of fraternal communist parties". Anything that Tito could have "infected" was meant to be eliminated. The decisive action against him had been agreed upon by the end of June. At the beginning of July, two of the communist parties, namely the Polish and the Bulgarian one, were summoned to reconsider their ideology. Gomułka, Kostov, Rajk, Markos and Xoxe immediately aroused suspicion. On 6 July 1948, a meeting of the Plenum of the Central Committee of the Polish Workers' Party was set up to carry out a discussion about the considerable deviations of Gomułka. Zadawski and Zamborovski presented a "clear Marxist-Leninist analysis". The Plenum met again on 31 August – 3 September. Gomułka agreed to his wrongdoings and was replaced by Minc. Gomułka was arrested, set free then re-incarcerated. On 12–13 July 1948 the Central Committee of the Bulgarian communist party "unanimously declared that the leadership of our party has never doubted the leading role played by the Russian communist party and the Soviet Union in the democratic camp". They realised that they had not been vigilant enough towards the Yugoslav communist party. The month of June saw a new wave of retaliation against perceived supporters of Tito. On 10 June Koçi Xoxe was hanged in Albania and on 15 June, Rajk was arrested in Hungary. Another wave of attacks was carried out in the autumn of the same year, during which Rajk was hanged, Gomułka was arrested and Kostov's indictment was published. These attacks seem to have originated from the conflict between Tito and the Russians.

Lastly, the fourth meeting was held in Hungary on 27 November 1949. Two reports were presented, which led to three resolutions. The Soviet delegate, Suslov, announced a report "on the Defence of Peace and the fight against warmongers", which urged the people of the Western countries to hinder any imperialist measures which were taken by the governments of said countries against the Eastern Bloc. Furthermore, Togliatti presented a report about the Working class and the tasks of the Communist and Workers parties. This resolution pinpointed the "particular attention which should be devoted to the mass of Catholic workers". Finally, the Romanian delegate, Gheorghiu-Dej, concluded that, as Tito's establishment had not been dealt with, it was the duty of the communist parties to strengthen the fight against it by making more noticeable the net of economic and diplomatic pressure and by urging Tito's opposition within Yugoslavia to start secret activity.^[7][17][18]

The fortnightly journal For a Lasting Peace, for a People's Democracy! was published by the Cominform in Russian, French and English.^[19]

• Party of Labour of Albania
• Bulgarian Communist Party
• Communist Party of Czechoslovakia
• French Communist Party
• Socialist Unity Party of Germany
• Hungarian Communist Party, then Hungarian Working People's Party
• Italian Communist Party
• Communist Party of the Netherlands
• Polish Workers' Party, then Polish United Workers' Party
• Romanian Workers' Party
• Communist Party of the Soviet Union
• Communist Party of Yugoslavia, until its expulsion in 1948.
• Communist Party of the Free Territory of Trieste, until Yugoslavia's expulsion of 1948.

• Comintern
• Comecon
• Danube Commission
• Warsaw Pact
• World Marxist Review

• G. Procacci (ed.), The Cominform. Minutes of the Three Conferences (1947-1949). Milan, Italy: Feltrinelli, 1994.