Sergey Nikolayevich Kolyushenko Master of Cossack Martial Tradition | Instructor of Plastun Reconnaissance and Hand-to-Hand Combat Profile - Sergey N. Kolyushenko (Сергей Николаевич Колюшенко) is a hereditary Don Cossack and recognized instructor of Cossack martial tradition. He has spent decades developing and transmitting combat knowledge that blends Russian hand-to-hand systems with the plastun reconnaissance school—a discipline emphasizing stealth, survival, and adaptation in the field. He c

Mastering Basic Cossack Martial Arts with Swords and Knives First Training