Isshin-Ryu Karate History of William Halter

I have studied Isshin-ryu Karate since January 2003 and achieved Shodan (first degree black belt) rank in December of 2008. I served in the US Air Force from 2010 to 2017 where I was exposed to other martial arts, primarily Brazilian Jiu Jutsu and Muay Thai through a few months of training at a mixed martial arts gym in Omaha, Nebraska which expanded my thinking on how to apply the principles and concepts illustrated in our kata.