Pekiti Tirsia Kali (PTK) is a Filipino martial art that dates back to 1897. It is the oldest Filipino martial art that is used in today’s modern world for combat training. Pekiti-Tirsia Kali is the most complete, advanced, and effective system of Filipino martial arts in existence today. Pekiti-Tirsia is a real combat blade fighting style that uses all-edged and impacts weapons, empty-hand fighting, and modern firearms without any problems. The Pekiti Tirsia System of Kali is a close-quarters and infighting system. Designed for both single and multiple attackers, Pekiti Tirsia is both ancient and modern. Pekiti Tirsia is proven effective in combat and indispensable for today’s heroes of the law enforcement and military communities.