Terrorism has existed since human civilization, and at the current, extremely dangerous level of its development it has reached the phase when it can seriously threaten human civilization. Contemporary and most recent terrorist acts confirm this statement. Every country nowadays can be a 'host' to terrorism and it is almost impossible to find a country or city in the world that could be claimed not to be a potential target of a terrorist attack. Our country, unfortunately, has enormous and bitter experiences of countering terrorism and the fight against terrorism and the armed rebellion forces. The subject of this paper is focused on determination and consideration of contemporary terrorism, forms (types, systems) and methods of its operati...