Complex sentence: In 1954 Minoru Mochizuki taught the first European students Yoseikan Karate, first in Switzerland and then in France, where he was invited to teach for the founder of the French Karate Federation, Henri Plee.
Split into simpler sentences: In 1954 Minoru Mochizuki taught the first European students Yoseikan Karate. First in Switzerland and then in France where he was invited to teach for the founder of the French Karate Federation, Henri Plee.