In 1968, Master Shin came to the USA as a representative for which association?

Master Shin came to the USA in 1968 as a representative for Soo Bahk Do. This martial art, which has its roots in Korea, was founded by Hwang Kee in the early 1940s and is known for its traditional techniques and principles. Master Shin's arrival played a significant role in promoting Soo Bahk Do across the United States, helping to establish schools and training programs that laid the groundwork for the art's growth in America.

The other associations mentioned do not directly relate to Master Shin's representation during that time. Taekwondo, while popularized around the same period, is a broader term encompassing various styles, including those developed from different martial arts; Hapkido is a distinct Korean martial art with its own lineage and techniques; and Aikido, originating from Japan, is unrelated to Master Shin's mission to promote Soo Bahk Do.