Complex sentence: Genbu Kai International split off from Itosu Kai International in 2003 after the 2001 political dispute in which he was expelled from Shito Ryu Itosu Kai.
Split into simpler sentences: Genbu Kai International split off from Itosu Kai International in 2003 after a political dispute. He was expelled in 2001 from Shito Ryu Itosu Kai.