sentences:  He also received military training in the US–at Fort Benning, Georgia and later at Fort Bragg, North Carolina.Tunku Ibrahim Ismail was appointed as the Tunku Mahkota of Johor on 4 July 1981, and had been primarily residing at Istana Pasir Pelangi since then.Tunku Ibrahim was the regent of Johor between 26 April 1984 and 25 April 1989 when his father served his term as the Yang di-Pertuan Agong of Malaysia.