Neo-Fascist groups and parties
Neo-fascism around the world is a somewhat common thing. These people incorporate the Nazi swastika into their emblems or flags and are often devoted to Hitler's beliefs. Many groups are also very anti-homosexual and many are antisemitic. They believe that their race is the greatest and they should have national identity for their race. The American Nazi Party is a great example of one of these groups.
Many countries around the world have had a neo-fascist group of some kind after WWII. One neo-fascist group that still exists today is in Greece: Golden Dawn. They are a neo-Nazi group, although they deny it. There have been many acts of violence involving them, some caused by them, others caused by their political enemies.
Neo-fascism and neo-Nazism are both essentially bad things. They cause violence and their ideas are usually racist against minor ethnic groups.