"The war was the main cause of the Russian Revolution", How far do you agree?

Weak leadership of Czar Nicholas II—clung to autocracy despite changing times • Poor working conditions, low wages, and hazards of industrialization • New revolutionary movements that believed a worker-run government should replace czarist rule • Russian defeat in the Russo-Japanese War (1905), which led to rising ...

answer; /// the above statement is (

the soviet union wanted to impose communist governments in eastern europe.