Shuri-Ryu Karate is an eclectic martial arts system, developed by the martial arts pioneer Robert Trias, the first person to teach karate in the United States in 1945 in Phoenix, Arizona. He opened the first karate school in the nation in 1946 and formed the first karate organization, the United States Karate Association, in 1948.
Other styles of karate related to the Trias-line are Shorei-Goju-Ryu and Shorei-Ryu.
The style of Shuri-ryu is taught and is especially prevalent in the United States, parts of Europe, and South America.
The roots of Shuri-Ryu are in Okinawa, especially in the Shuri-Te karate of Ankoh Itosu and Choki Motobu and the Hsing Yi Chuan of Tung Gee Hsing. Robert Trias, the style's founder, trained with Tung Gee Hsing, who had cross-trained with Choki Motobu earlierin the Okinawan village of Kume Mura. Tung Gee Hsing taught Trias Hsing Yi (the Intellectual Fist) and Shuri Karate Kempo.
Later Trias studied with Hoy Yuan Ping, Goge Yamaguchi, Roy Oshiro, Yasuhiro Konishi, Makoto Gima, and several other teachers. Konishi awarded Trias with the 9th Dan in 1964 and was a prominent student of both Choki Motobu and Gichin Funakoshi.
Gima was a prominent student of Funakoshi and awarded Trias the 10th Dan in 1983. Both, Konishi and Gima helped Trias reconstruct the old Shuri-Te system of Okinawan karate with some modifications, hence a new name for the system was designated Shuri-Ryu. Shuri-Ryu also incorporated some Naha katas and methods.