How did the positions of the Mensheviks and Socialist-Revolutionaries fundamentally differ from the position

How did the positions of the Mensheviks and Socialist-Revolutionaries fundamentally differ from the position of the Bolsheviks regarding the establishment of new power in the spring and summer of 1917? On what basis are the stages of the Civil War formulated?

The Bolsheviks were very categorical and radical on the issue of establishing power in Russia, because they insisted on the revolutionary path and on coming to power through military action. After that, socialism or communism should have reigned. The Mensheviks and Socialist-Revolutionaries were less radical in their judgments on this issue. They talked about the fact that conditions for the transition to socialism had not yet been formed in Russia, and therefore it was necessary to reach a high level in capitalism and only then implement your idea. The periodization of the Civil War is based on the principle of the development of victories for the Red forces.