Comintern Conditions of Admission

The Comintern Conditions of Admission were the 21 peremptory theses through which the Communist International sought to determine which parties and comrades could remain within its ranks. At the Italian Socialist Party congress in Livorno in January 1921, their demand that the party change its name and reject non-revolutionary socialists turned an international membership test into a direct challenge to the unity of a mass party already divided over revolution.

Conditions and Membership

Adopted at the Communist International’s previous July congress, the 21 theses required the Italian party to change its name and renounce as counterrevolutionaries those comrades who believed in socialism but not revolution. The conditions drew a sharp boundary: continued membership in the International required more than socialist affiliation or rhetoric; it demanded a break with members the theses classified as opponents of revolutionary action.

The demand confronted a difficult political reality. After the unsuccessful factory occupations, Nicola Bombacci and his followers were described as the only ones in the party who still believed in revolution, while a clear majority of Giacinto Menotti Serrati’s maximalists no longer did, despite continuing to preach it. The dispute was therefore not simply about a label. It tested whether the party would preserve a broad socialist membership or conform to the International’s demand to exclude those judged insufficiently revolutionary.

The Ultimatum at Livorno

The conditions became immediate business at the Italian Socialist Party’s seventeenth congress, which opened at the Teatro Goldoni in Livorno on January 15, 1921. The seating made the party’s divisions visible: communist delegates occupied the left-hand tiers, centrist delegates the orchestra, and reformists the right-hand tiers. They represented, respectively, 58,000, 100,000, and 15,000 votes. The congress had only begun, yet the account presents its outcome as already ominously constrained by the conflict between these groups.

On the morning of January 16, Christo Kabakciev, the Communist International’s delegate, delivered the demand as an ultimatum. He declared the situation revolutionary, denounced those who sided with the reformists as traitors, and warned that Moscow would expel anyone who voted for the maximalists’ unitary motion. Nicola Bombacci and the communists applauded; delegates elsewhere in the theater answered with sarcastic cries invoking excommunication and rejecting foreign direction. The dispute over admission to the International had become a contest over who could define the party’s legitimate political line.

A Mass Party Under Pressure

The pressure was sharpened by the contrast between the party’s electoral and organizational reach and its internal disunity. In the November elections, it had won a majority in 2,162 municipalities and secured 156 seats in parliament. It had 216,000 members in 4,300 sections, three times as many as two years earlier, while Avanti! circulated more than 300,000 copies daily. The proletariat beyond the congress hall was still presented as ready for a heroic effort; inside it, the factions were locked in a struggle over revolution, reform, and unity.

The conditions thus made international affiliation conditional on a specific domestic rupture. The Comintern’s threat put delegates to a choice between the unitary motion and the risk of expulsion, while the party’s divisions made either course consequential. At Livorno, the 21 theses were not an abstract statement of doctrine: they supplied the terms of a concrete political test whose stakes included both the party’s relationship with Moscow and the possibility of maintaining its broad socialist constituency.