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Rear Adm. Muckian is a native of Elmhurst, Illinois. He was commissioned in 1995 through the Naval Reserve Officers Training Corps at the University of Illinois, where he earned a Bachelor‘s degree in Mechanical Engineering. He also holds a Master’s degree in National Security and Strategic Studies from the Naval War College.
A career submariner, his operational tours include USS Greeneville (SSN 772), USS Louisville (SSN 724) and USS Alexandria (SSN 757). He returned to USS Greeneville (SSN 772) in Pearl Harbor, Hawaii, as commanding officer from 2012 to 2014. During his tour, the ship completed two Western Pacific deployments and the crew earned a Navy Unit Commendation, a Meritorious Unit Commendation, and the Battle Efficiency Award for 2013 and 2014. He commanded Submarine Squadron Six in Norfolk, Virginia. He served as the chief of staff to Commander Submarine Force, U.S. Pacific Fleet.
In staff positions, he served as flag aide to Commander, Submarine Group Eight in Naples, Italy; two tours in the Bureau of Personnel: first as submarine officer community manager and nuclear officer policy manager and then as special assistant to the Chief of Naval Personnel; and as military assistant to the Deputy Under Secretary and Under Secretary of Defense for Policy.
In his first flag tour, he served as Commander, Undersea Warfighting Development Center.
Muckian assumed his current duties in June, 2023 as Commander, Submarine Group TWO and Deputy Commander, SECOND Fleet in Norfolk, Virginia.
His personal decorations include the Defense Superior Service Medal, Legion of Merit (four awards), Meritorious Service Medal (two awards), Navy and Marine Corps Commendation Medal (four awards), and Navy and Marine Corps Achievement Medal (two awards). He has served with crews that have earned four Battle Efficiency awards and various unit and campaign awards.