Sensei Clark started his study of Shotokan Karate in 1989 as a member of the International Shotokan Karate Federation while stationed at Luke Air Force Base, Arizona. While in the Air Force, Sensei Clark had the opportunity to train under many masters of Shotokan Karate such as Teruyuki Okazaki, Takayuki Mikami, Yutaka Yaguchi, Shojiro Koyama, Shigeru Takashina, and Kenneth Funakoshi. In 1998 Doug was promoted to the rank of Shodan (1st degree black belt) by Chairman of the International Traditional Karate Federation Master Hidetaka Nishiyama. Sensei Clark currently holds the rank of Sandan, 3rd degree black belt, in the Karatenomichi World Federation (KWF). Sensei Clark is also a registered instructor, judge, and examiner under the KWF.
Sensei Clark retired from the Air Force September 1st, 2001 to focus more on his study and instruction of Shotokan Karate. Since retirement as an Air Force Explosive Ordnance Disposal Specialist Sensei Clark has dedicated himself to the training and teaching of Shotokan Karate, working with kids, and volunteering his time teaching self defense to the Las Vegas community. Sensei Clark shares his knowledge with students willing to make the sacrifices necessary of serious karateka.

Nevada Shotokan Karate-Do (NSK) was founded by Sensei Clark in 2001 after retiring from the Air Force. NSK offers Japanese Karate Association (JKA) style training in traditional Japanese Karate. NSK is a family oriented dojo that offers serious students rigorous physical and mental training in the art of Karate. Emphasis is on the traditional aspects of Shotokan, not sports Karate.

Sensei Joe began his study of karate in Honolulu, Hawaii under Sensei Hakikawa in 1976. After advancing to brown belt Sensei studied under the founder of the Japan International Karate Center, Shihan Kiyohisa Hirano, an 8th dan in Wado Ryu and 2nd dan in judo. Sensei Joe was promoted to Sandan in 1988. In 1992 and 1995 Sensei was the Hawaii State Kumite Champion. From 1993 – 96 Sensei Joe was a member of the US/AAU and United States Karate (USK) National Championship Team representing Hawaii.