The area in red was the site of conflict between

The communist and non communist forces

Explanation

Non communist offered opposition to communism that started in 1917 as a Revolution in Russia and spread to reach world dimensions during the Cold War. The non communism holds different political positions including the liberal, socialists and democrats. The Russian White movement is still remembered as the first organization that dedicated itself towards opposition of communism

honestly you should get that checked out because it really isn't normal