The Russian Revolution weakened the Allied war effort. Russia pulled out of the war, so the Allies needed help.
Without Russia the Allies were very weak but then the U.S came in with a very strong navy witch helped the Allies a lot. The Western Allies were concerned by the Bolshvik Revolution. US Forces occupied Vladivostok in 1917-18, and British forces occupied Archangel.
The fall of the Russian tsar made it easier for the United States to enter the war. By joining with the Allied powers, the United States would not be siding with a tyrant. Instead, Wilson reasoned, it would be joining with other democracies to fight tyranny.
For the allies the Americans entry was pivotal. On the Eastern Front the bloody Bolshevik Revolution headed by Vladimir Lenin had swept the Communists to power in Russia.
On one end, Russian withdrawl closed the Eastern front for the Germans, allowing them to pull troops from that front to augment the Western front. On the other end, this also forced Germany to use vital troops to occupy new Russian territory.
The allies (15 countries including Britain, France, Italy, the United States, and Japan) were concerned about the Bolsheviks winning the Russian Revolution. One of the worries of the Allies was that the Allied supplies which were intended for the Russian units might fall into German hands. The Allies also hoped to prevent Germany from concentrating its forces against the Allies in the West. The Allies had also hoped to eliminate Communism. They also wanted to protect their own wartime and postwar geopolitical and strategic interests in the region.
Because it would weaken the war effort against Germany
more willing to join the allies
From what I remember, when the Bolsheviks took power in October, 1917, they immediately began peace-talks with Germany. The Russian people had incurred significant losses and the Tsar himself had become the avatar of the Russian war effort when he took charge of the Russian Armed Forces in 1915-16. The Germans demanded enormous concessions and in March, 1918, the Treaty of Brest-Litovsk was signed, ending Russian participation in World War I. The allies responded by aligning themselves with pro-Tsarist forces and even other, less extreme communist forces (Mensheviks aka "Whites"). This Russian Civil War lasted until about 1920, when the Red Army defeated its internal enemies and drove off aggressive Allied forces. The Allies intervention proved to the Bolshevik Party that their revolution would not survive unless they sparked revolution in advanced capitalist countries.
Robert D Warth has written: 'The Allies and the Russian revolution'
The Russian Revolution weakened the Allied war effort. Russia pulled out of the war, so the Allies needed help.
Germany
Without Russia the Allies were very weak but then the U.S came in with a very strong navy witch helped the Allies a lot. The Western Allies were concerned by the Bolshvik Revolution. US Forces occupied Vladivostok in 1917-18, and British forces occupied Archangel.
Russia pulled out of the war, so the Allies needed help. The Russian Revolution weakened the Allied war effort.
The February Revolution in 1917 did not affect it at all, because the new Provisional Government kept it going just as the Tsar had done. The October Revolution eventually ended Russia's participation in the war when Lenin entered into the Treaty of Brest-Litovsk with Germany. After that, Germany moved the military forces that were fighting the Russians over to fight the French and English on the western front. That increase in military force could have won the war for the Central Powers but then the United States entered the war and added its forces to the Allies.
Because it would weaken the war effort against Germany They feared Russia would pull out of the war. The Allies were worried about the Bolshevik Revolution for several reasons. First, the Allies feared it would take Russia out of World War 1 and allow Germany to move all the military forces it was using to fight Russia to fight France and England instead. This would make Germany harder to defeat in the war. Second, they feared that the revolution might spread to their own countries as well. Even Germany feared that the Bolshevik Revolution could spread to its own people. The Bolsheviks were determined to spread the communist revolution to all countries and did their best to do so even to the United States.
became allies of Germany