PERSON: Mark Milley

Senior Adviser

Mark Alexander Milley (born June 20, 1958) is a retired United States Army general who last served as the 20th chairman of the Joint Chiefs of Staff from October 1, 2019, to September 30, 2023. He previously served as the 39th chief of staff of the Army from August 14, 2015, to August 9, 2019, and held multiple command and staff positions in eight divisions and special forces throughout his military career.

An ROTC graduate from Princeton University, Milley earned his commission as an armor officer in 1980. Later he graduated from Columbia University. He was appointed chairman of the Joint Chiefs of Staff by US President Donald Trump, making Milley the tenth U.S. Army officer to be chairman. As chairman, Milley was the highest-ranking officer in the United States Armed Forces and the principal military advisor to the president of the United States, the secretary of defense, the National Security Council and the Homeland Security Council.

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