Hermann Rosenberg (“Rosi”), age 63, brings decades of operational experience to conversations about close-quarters defense. Enlisting in 1982, his service included roles as an armored grenadier and anti-tank paratrooper, followed by 11 years in special operations units and subsequent return...

Keywords: knife sparring rules, tactical training safety, safe knife drills, martial arts sparring gear, realistic training. The Fine Line Between "Hard" and "Stupid" Sparring is the laboratory of martial arts. It is the only place where you can test your...

Keywords: Pekiti Tirsia Kali gear, Kali training knife, PTK beginner equipment, martial arts training blades. Why "Blade-First" Changes Your Gear Requirements If you are starting your journey in Pekiti-Tirsia Kali (PTK), you likely already know that this isn't a sport—it...

In a high-stress situation, your brain doesn't rise to the occasion—it sinks to the level of your training. If you carry a tactical blade for self-defense or professional duty but only practice "in the air" or with a live edge,...

From Bayonet to Blade: The Evolution of the Viper Dagger For decades, the M9 Bayonet has been the gold standard for U.S. military multi-purpose blades. Designed to mount on the end of a rifle while doubling as a field tool,...

Tuhon Rommel Tortal: From Pekiti-Tirsia Lineage to the PTK75 Tactical Design Tuhon Rommel Tortal is the nephew of Grand Tuhon Leo Tortal Gaje Jr., the Supreme Grandmaster of Pekiti-Tirsia Kali (PTK). He began his training in 1984 directly under Grand...

Hermann “Rosi” Rosenberg — From KSK Commando to the SG00 Shadow Guard Hermann “Rosi” Rosenberg is one of the very first Kommando Spezialkräfte (KSK) commandos and a respected figure within the Bundeswehr. He has shared firsthand accounts of his service...