Major General Joseph Marsiglia, Commanding General, 3D Theater Medical Command, spoke at the commissioning ceremony of twelve new 2nd Lieutenants from the University of Michigan Army ROTC Battalion, in Ann Arbor, Michigan, on May 2, 2025. Maj. Gen. Marsiglia encouraged these future Army officers to use the leadership skills they have practiced at the University of Michigan, while preparing for the changes the Army and Army Reserve are currently experiencing. Maj. Gen. Marsiglia also looked back on the time he has spent mentoring these new Lieutenant as part of the Working Together Program, sponsored by the Reserve Officers Association.
Maj. Gen. Marsiglia has been participating in the Working together Program mentoring the students...
U.S. Army Maj. Gen. Joseph Marsiglia, Commanding General of the 3d Theater Medical Command, relinquished command to U.S. Army Brig. Gen. Jennifer Marrast Host, former Deputy Commanding General of Army Reserve Medical Command, on Sept. 6, 2025 in Forest Park, GA at Gillem Enclave. The U.S. Army holds change of command ceremonies to formally commemorate the transfer of leadership. (U.S. Army Reserve video by Pfc. Eric Goins)
Brigadier General Jennifer Marrast Host was born in Grenada and raised in New York. She holds a Bachelor of Arts in Biology from the City University of New York - Hunter College and earned her Doctor of Medicine from Rutgers University School of Medicine in 1997. A board-certified Emergency Medicine Physician, she completed her residency as Chief at St. Luke’s-Roosevelt Medical Center in 2000. Currently, she serves as the Associate Chief of Staff of Education at the Atlanta Veteran Affairs Health Care System.
Commissioned as a captain in the U.S. Army in July 1997, Brig. Gen. Marrast Host has an extensive military education background, including the Army War College, Command and General Staff College, and several other advanced courses. Her recent leadership positions include Deputy Commanding General of the Army Reserve Medical Command and previous roles as Deputy Commanding General of the 807th Medical Command and Commander of the 3d Medical Command Deployment Support.
Throughout her career, she has led multiple units in various operational theaters, focusing on Force Health Protection during the COVID-19 pandemic. Her notable assignments include Chief of Staff for the 3d Medical Command Deployment Support, Commander of several medical units, and serving in combat zones in Iraq and Afghanistan.
Brig. Gen. Marrast Host has received numerous military awards, including the Legion of Merit and the Meritorious Service Medal, among others, recognizing her exceptional service and leadership in the U.S. Army. (U.S. Army photo by Staff Sgt. Dontavius Haywood)
The 3D Medical Command (Deployment Support) hosts a G-1 Bootcamp which is a five-day course that provides training to USAR Soldiers and Civilians who utilize Human Resource systems and processes.
