He held this office from 1995 to 1997 for the UN institutions in Geneva and as a deputy in New York City from 1997 to 1999 .
Since February 17 , 2004 , he has been Vietnam 's ambassador to the United Nations in New York City .
ambassador held this office from 1995 to 1997 for the United Nations institutions in Geneva and as a deputy in New York City from 1997 to 1999 .
Since February 17 , 2004 , he has been Vietnam 's ambassador to the United Nations in New York City .