The fierce horsemen known as Cossacks once helped Russian tsars to defend the southern borders of the Russian Empire. They were persecuted during Soviet times and resurrected in Russia’s modern age as patrolmen and law enforcers – a venerable force that's not formally part of the army or the police, but that instills deep respect and sometimes trepidation. Cossacks are now helping Russian authorities enforce security during the Olympics.
How to tell them apart: Look for their traditional black lambswool hats and coats with epaulettes. They are also known for their cavalry-inspired dance moves, which might make it into the opening ceremony.
