in 1917 russia withdrew from the war specifically December 1917
1917.
Russia last full year of World War I
Russia
Italy was the only country to switch sides at the very beginning. Bulgaria and Russia switched sides late into the war.
Russia joined world war 1 in 1914
Czar Nicholas II controlled Russia during World War I. He lost power during the final year Russia was in the war and the Alexander Kerensky was in power for the final months before Lenin took over and negoitated Russia's surrender to Germany.
World War 1 left Russia's economy in complete devastation. By the end of the war Russia had 8,000,000,000 rubles of debt.
Vladimir Lenin took Russia out of World War 1.
the allied powers: France, Russia, Italy and great Britain
If you mean in World War 2 then it was because Hitler tried to invade Russia and Britain at once by splitting his army in two, both nazi armies failed to defeat russia nor Britain.
Vladimir Lenin is the leader who wanted to get Russia out of World War 1.