u.s. ambassador killed in the line of duty
J. Christopher Stevens John Christopher Stevens (April 18, 1960 – September 11, 2012) was an American career diplomat and lawyer who served as the U.S. Ambassador to Libya from May 22, 2012 to September 11, 2012.[3][4] Stevens was killed when the U.S. Special Mission in Benghazi, Libya, was attacked by militants on September 11–12, 2012. [3][5]
United States Ambassador to the United Nations The U.S. Permanent Representative, currently Nikki Haley, is charged with representing the United States on the U.N. Security Council and during almost all plenary meetings of the General Assembly, except in the rare situation in which a more senior officer of the United States (such as the U.S. Secretary of State or the President of the United States) is present. Like all United States ambassadors, he or she must be nominated by the U.S. President and confirmed by the Senate.