From the ranks of ancient Slavic tribes came the noted horsemen – generically referred to today as Cossacks – who guarded the frontier borders of Eastern Europe, most famously those working under the authority of the Russian Czars. For centuries, these warriors and their performing descendants have been recognized worldwide for their daring acrobatic feats on horseback. It takes many months of training for both humans and horses to be considered ready to perform with the Kassaev Cossack Troupe, whose grace, courage and agility feature prominently throughout the 136th Edition of The Greatest Show On Earth^®. Each rider is an accomplished athlete and acrobat, and each horse a majestic representative of its breed.