With the fall of communist governments in the 1990s, what kinds of problems have arisen in what places

The kind of problem that arise after the fall of communist government is creation of new boundaries

New government tried to take control of the countries

The countries which has this communism ties to the government experienced lack of security and law

Political unrest amongst other issues occured in the Balkans (Soviet Union, Yugoslavia, Czechoslovakia) in these places peace could not be gotten by the usual means because of how those countries or states were structured. Countries were dismantled because minority ethnicities opposed dominance by majority ethnicities