I believe that there is nothing that can be absolutely called legal or illegal What is legal and what is illegal are relative, we will have to consider various factors to tell whether it is legal or illegal. Let me give you an example, People hiding Anne Frank from Nazis were breaking the law, and people who killed Anne were following the law. Whatever Putin is doing in Russia is legal today, but if someone else comes and establishes a liberal government, Putin's act would be deemed illegal.