FILE PHOTO: Former U.S. Ambassador to the United Nations Bolton arrives for a meeting with U.S. President-elect Trump at Trump Tower in New York

FILE PHOTO: Former U.S. Ambassador to the United Nations Bolton arrives for a meeting with U.S. President-elect Trump at Trump Tower in New York

Former US ambassador to the UN John Bolton will take over from outgoing National Security Adviser HR McMaster on April 9. Photo: Reuters/Mike Segar

March 24, 2018 10:03 AM (UTC+8)