Britain breaks diplomatic relations with the Soviet Union

Delegates from anti-colonial, nationalist and communist movements met at the League Against Imperialism congress. The Comintern and Soviet networks supported the initiative, which connected colonial...

The congress closed after adopting resolutions against colonial domination and racial hierarchy. It brought anti-colonial activists into contact with socialist organizations and publicized struggles...

The government approved construction of the Turkestan-Siberian railway, designed to connect Central Asia with Siberian grain and industrial centers. The railway promised mobility and economic...

Kuomintang forces under Chiang Kai-shek attacked Communists and labor activists in Shanghai, ending the alliance that had structured the first united front. Soviet and Comintern policy had sought to...

British police raided the Soviet trade delegation and the All-Russian Cooperative Society (ARCOS), alleging that they had been used to obtain military information. The USSR denounced the raid as a...

Chinese Communist forces launched an uprising in Nanchang after the collapse of the united front with the Kuomintang. The revolt marked a turn toward independent armed struggle, influenced by...

At an emergency conference, Chinese Communist leaders repudiated the previous alliance strategy and adopted a line emphasizing armed struggle and agrarian revolution. The shift reflected the party’s...

The Soviet Union and Persia signed a treaty of guarantee and neutrality as both governments sought to manage security in a region shaped by Russian and British imperial competition. Soviet diplomacy...

Supporters of Trotsky, Zinoviev and other opposition figures demonstrated during the tenth anniversary celebrations of the October Revolution. The party leadership treated the action as factional...

The party leadership expelled Leon Trotsky and Grigory Zinoviev after the opposition demonstrations and prolonged disputes over policy and internal democracy. Their removal from the party narrowed...