Complex sentence: In March 1938, Ōyama left for Japan following his brother who enrolled in the Yamanashi Aviation School Imperial Japanese Army aviation school Ōyama, 1963, What is Karate, Japan Publications Trading Company.
Split into simpler sentences: In March 1938, Oyama left for Japan following his brother who enrolled in the Yamanashi Aviation School Imperial Japanese Army aviation school. Oyama, 1963, What is Karate, Japan Publications Trading Company.