MA in International Law and Diplomacy; 1981, Department of Training, Ministry of Foreign Affairs. 1982-85, Attaché, Embassy of Vietnam to the United Kingdom; 1986-90, Department of General Political Affairs, Ministry of Foreign Affairs; 1999-2001, Ambassador and Deputy Permanent Representative of Vietnam to the United Nations; 2001-03, Minister and Deputy Chief of Mission, Embassy of Vietnam to the United States of America; 2006, Alternate Member, Central Committee, Communist Party of Vietnam; Director-General, Department of International Organizations, Ministry of Foreign Affairs; 2009, First Vice-Minister of Foreign Affairs and Member, Central Committee, Communist Party of Vietnam; 2011, Minister of Foreign Affairs and Member, Central Committee, Communist Party of Vietnam. Since Nov. 2013, Deputy Prime Minister and Minister of Foreign Affairs.