[2] Over the subsequent decades, Max Nettlau developed this principle into a call for anarchists to unite into a single organisation, which would preserve individual autonomy and encourage mutual aid between its members.
They established their headquarters in Kharkiv, which became the center for their campaign to unify the disorganised anarchist movement into a coordinated revolutionary organisation,[6] which they hoped would be able to combat the rise of Bolshevism.
[9] The organization was designed to extend a great deal of autonomy to its membership and be open to members from all of the major anarchist schools of thought: anarcho-communism, anarcho-syndicalism and individualist anarchism.
[10] This "united anarchism" was immediately criticised by Volin's former anarcho-syndicalist comrades,[11] who regarded it as an ineffective way to unify the anarchist movement and feared the dominance of anarcho-communists in such an organization.
Although Faure had rejected the Platform as sectarian and ideologically homogeneous, preferring instead to cultivate good faith and mutual aid between anarchists, he set his own conception of synthesis apart from Volin's "dilettantism".
[25] In 1927, the Iberian Anarchist Federation (FAI) was established along synthesist lines, in order to act as a counterweight to the reformism expressed within the Confederación Nacional del Trabajo (CNT).
Established along synthesist lines, the IAF brought together anarchist federations from Argentina, Australia, Britain, Bulgaria, Cuba, France, Germany, Greece, Iberia, Italy, Japan, the Netherlands, Norway and Switzerland.