I enjoy visiting the Russian worlds.  Oh sure, we fought during The War, but there’s a big difference between the government and the people.  And honestly, we have a lot more in common with the Russians than many other nations.  And they have minimal centralized control.  Basically, you can do whatever you want on a Russian world, as long as you don’t break the law.  Just remember not to break the law there.  You do not want to spend a night in a Russian jail.