Okay kiddo, let me explain the West Russian Volunteer Army to you!
So, a long time ago, in Russia, there was a big war going on. It was called the Russian Civil War. There were a lot of people fighting for different sides in the war.
The West Russian Volunteer Army was a group of soldiers who were fighting for one side in the war. They were called "volunteers" because they chose to join this army on their own, rather than being forced to join by their government.
The army was led by a man named General Denikin. He wanted to take control of all of Russia and get rid of the people who were fighting against him.
The soldiers in the West Russian Volunteer Army came from all over the world. Some of them were from Russia, but others were from other countries too. They all wanted to help General Denikin and his army win the war.
Unfortunately, the West Russian Volunteer Army didn't win the war in the end. They had to give up and go home. But they fought bravely and did their best to try and make their side win.
I hope that helps you understand what the West Russian Volunteer Army was all about. Let me know if you have any more questions!