GKR Karate International | 1,227 followers on LinkedIn. Karate for everyone | Go-Kan-Ryu Karate (GKR) is a traditional Japanese style of karate. GKR was founded by Robert Sullivan in Adelaide, South Australia. Robert first began training in the art of karate in 1964, and spent time training and teaching in both Japan and the USA before establishing GKR in 1984.