Major General Castellvi is from Chicago, IL, and earned his commission through the NROTC program in May 1984, following his graduation from the University of Illinois.
Major General Castellvi’s assignments in the Operating Forces include: Rifle Platoon Commander, Weapons Platoon Commander, and 81mm Mortar Platoon Commander with 1st Battalion, 2d Marines (1985-88), participating in Operation EARNEST WILL in the Arabian Gulf with the 24th Marine Expeditionary Unit (MEU(SOC)); Platoon Commander and Executive Officer for Fleet Antiterrorism Security Team Company, Atlantic (1988-91), deploying in support of JTF Panama; Rifle Company Commander, H&S Company Commander, and Battalion Operations Officer for 2d Battalion, 9th Marines, (1991-94) deploying with 15th MEU(SOC) to Somalia for Operation RESTORE HOPE and the Arabian Gulf for the Peacekeeping Phase of Operation DESERT STORM; Commanding Officer of 2d Battalion, 3d Marines (2001-03); Commanding Officer of Headquarters Battalion, 1st Marine Division (2006-08), deploying to Operation IRAQI FREEDOM as the Senior Advisor to the 1st Iraqi Army Division; Chief of Staff of the 1st Marine Division (2009- 11), deploying to Afghanistan for Operation ENDURING FREEDOM as the Chief of Staff for Task Force Leatherneck; and the Chief of Staff for I Marine Expeditionary Force (2011-13).
Other assignments include: Project Officer and Assistant. Program Manager for Anti-armor Weapons, Marine Corps Systems Command (1994-97); Plans Chief, U.S. Central Command Theater War Plans, Marine Forces Pacific and Marine Forces Central Command (1999-01); and National Defense Strategist and Military Assistant to the Under Secretary of Defense for Policy, Office of the Secretary of Defense (2004-06).
His previous assignments as a General Officer were as Commanding General Marine Corps Installations East, Marine Corps Base Camp Lejeune (2013-15); Deputy Commanding General for Operations, Combined Joint Force Land Component Command, Iraq, Operation INHERENT RESOLVE (2014-15); Deputy Commanding General, II Marine Expeditionary Force / Commanding General, 2d Marine Expeditionary Brigade (2015-17); and Director, Manpower Management Division (2017-18). Major General Castellvi is a graduate of the U.S. Army Infantry Officer Advance Course, the Marine Corps Command and Staff College, the School of Advanced Warfighting, and the Industrial College of the Armed Forces. He has earned master’s degrees from the Marine Corps University, the National Defense University, and Capitol College.