Assistant Deputy Commandant, Plans, Policies, Operations

Gregg P. Olson grew up in Cumberland, RI, Montreal, Quebec, and Westlake Village, CA. He graduated from the United States Naval Academy in 1985.

An infantry officer, MajGen Olson has an additional Military Occupational Specialty as an embarkation officer.

MajGen Olson commanded a rifle company in 2nd Battalion, 1st Marines, and both Headquarters & Service and Weapons Companies in 3d Battalion, 2nd Marines. He commanded 2nd Battalion, 1st Marines during combat in Fallujah in 2004, and the 11th Marine Expeditionary Unit during its 2010 deployment.

His Marine Corps staff assignments include S-3 Operations Officer for 3d Battalion, 3nd Marines during Operation SEA SIGNAL (1995), S-3 Operations Officer for 15th Marine Expeditionary Unit (Special Operations Capable) during combat operations in Afghanistan (2001) and Iraq (2003), and service as G-3 Operations Officer for 1st Marine Division.

MajGen Olson’s supporting establishment assignments include staff and ceremonial duties at Marine Barracks, Washington, D.C., Faculty Advisor at Amphibious Warfare School, and Director for Senate Liaison, Office of Legislative Affairs, Headquarters, Marine Corps.

As a field grade officer, MajGen Olson was assigned as Assistant Deputy Director for Regional Operations (J-33), J-3, the Joint Staff. During that tour, he qualified as a Deputy Director for Operations (DDO) in the National Military Command Center.

As a general officer, MajGen Olson was assigned as Deputy Commander, U.S. Marine Corps Forces, Central Command/Commanding General, Marine Corps Forces, Central Command (Forward), Manama, Bahrain. During that tour, he was additionally assigned as Commander, Task Force 51/59, Fifth Fleet, U.S Naval Forces, Central Command. In 2016, he was assigned as the Director of the Marine Corps’ 2016 Quadrennial Defense Review Office at Headquarters, Marine Corps.

His Joint service as a general officer includes assignment as the Joint Staff’s J-5 Deputy Director for Political-Military Affairs, Middle East (DDME), and as the Director of Operations and Cyber, US Africa Command, Stuttgart, Germany.

Major General Olson is a graduate of the Amphibious Warfare School, Marine Aviation Weapons and Tactics Squadron One Weapons and Tactics Instructor Course, the College of Naval Command and Staff, and the National War College.

He is married to a former Navy Nurse Corps officer.

Plans, Policies and Operations