 This coalition only lasted four months, until March 1918, when the Left Socialist Revolutionaries pulled out of the government over a disagreement about the Bolsheviks' approach to ending the First World War.At their 7th Congress in March 1918, the Bolsheviks changed their official name from the "Russian Social Democratic Labour Party" to the "Russian Communist Party", as Lenin wanted to both distance his group from the increasingly reformist German Social Democratic Party and to emphasise its ultimate goal