How did political parties feel about World War I?

It is about the period from August 1914 to October 1917.

Most political parties reacted to the war patriotic, that is, they postponed differences and came to the conclusion that they must fight until victory. This applies to the monarchists, Octobrists, Cadets and part of the socialists. For example, Plekhanov advocated a war until victory, while the Socialist-Revolutionary Chernov and the Menshevik Martov were in favor of the immediate conclusion of a peace treaty between all the countries participating in the First World War.

The Bolsheviks and Lenin spoke out against the war and for its transformation into a civil war from defeatist positions. In fact, they achieved this by the end of 1917.