Player Embed Code: Download Embed Share Space Command Changes Commanders Defense.gov Jan. 10, 2024 | 01:15:41 Deputy Defense Secretary Kathleen Hicks and Vice Chairman of the Joint Chiefs of Staff Navy Adm. Christopher W. Grady attend the U.S. Space Command change of command ceremony. Army Gen. James H. Dickinson is relinquishing command of U.S. Space Command, the 11th and newest combatant command, to Space Force Gen. Stephen N. Whiting.