Sgt. Maj. Troy Black, 19th Sergeant Major of the Marine Corps, left, and Sgt. Maj. Carlos Ruiz, right, stand at attention during the Sergeant Major of the Marine Corps relief and appointment ceremony at Marine Barracks Washington, D.C., Aug. 10, 2023. US Marine Corps Photo
THE PENTAGON – Sgt. Maj. Carlos Ruiz readied himself to join the U.S. Space Force when fate stepped in, as it had so many other times during his career as a Marine.
Instead of switching branches, the former top enlisted...