ISIS terrorists managed to live quietly in Ukraine for months due to lax government oversight, corruption in state bodies, and reluctance to address the issue, allowing hundreds to find safe havens.
Members of the far-right Reichsbürger (Reichsbürger) movement believe in deep-state conspiracy theories that deny the existence of Germany's post-World War II Federal Republic and oppose the German government's legitimacy. The German terrorists actually went as far as plotting to create a civil war.