20th Chairman of the Joint Chiefs of Staff and 39th Chief of Staff of the Army
Mark Alexander Milley (born June 20, 1958) is a retired United States Army general who served as the 20th chairman of the Joint Chiefs of Staff from October 1, 2019, to September 30, 2023. He had 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. An ROTC graduate from Princeton University, Milley earned his commission as an armor officer in 1980. He later received a master's degree from Columbia University.
https://en.wikipedia.org/wiki/Mark_Milley