Marines


Biography

 

Brigadier General Sean N. Day
Commanding General, Force Headquarters Group

Brigadier General Sean N. Day currently serves as the Commanding General of Force Headquarters Group. He entered the Naval Service in 1989 and was assigned to the Naval Academy Preparatory School in Newport, RI. BGen Day was commissioned in 1994 upon graduation from the United States Naval Academy. 

Command assignments include multiple Rifle, Weapons and Guns Platoon Commander assignments in the 1st and 4th Marine Divisions; Commanding Officer of Weapons Company, 2d Battalion, 23d Marine Regiment; Commanding Officer of 2d Battalion, 23d Marine Regiment during which he formed and led Task Force 2/23; Commanding Officer 3d Civil Affairs Group during which he formed and led Combined Joint Civil Affairs Task Force Cobra Gold; Officer in Charge of the Reserve Detachment/ Deputy Director (Reserve) MAGTF Staff Training Program; and Deputy Commander, Force Headquarters Group, MFR. 

Other operational assignments include duty as Executive Officer of a field artillery battery, infantry battalion and a Civil Affairs Group. He has served as Operations Officer of two infantry battalions, an Air Naval Gunfire Liaison Company (ANGLICO), a Civil Affairs Group and a Marine Security Guard BN (State Department) Regional Headquarters. He has also held the billets of Fire Support Coordinator, Air Officer, Logistics Officer and Inspecting Officer. Additionally, BGen Day served as Aide – de – Camp to the Assistant Division Commander and subsequently the Commanding General of the 1st Marine Division (Reinforced). Operational and combat deployments include service in Operations Southern Watch with 15th MEU (SOC), Iraqi Freedom with 1st Marine Division, and Enduring Freedom – Afghanistan with I and II MEF (Forward). 

Service outside the Fleet Marine Force (FMF) includes assignments to the Roles and Missions Coordination Office, Headquarters Marine Corps and duty as Chief of Staff of the Secretary of the Navy’s Marine Corps Reserve Policy Board. 

BGen Day is a Joint Qualified Officer, and an Operations and Tactics Instructor. 

He holds a Bachelor of Science degree from the United States Naval Academy where he was the two time recipient of the Naval Order of the Prize Award which recognizes the midshipman with the broadest knowledge of international relations, politics and diplomacy. He received a Master of Business Administration from Cornell University earning fellowships in both Finance and Leadership studies. 

BGen Day also holds a Masters of Strategic Studies from the United States Army War College. Military awards include the Legion of Merit, Bronze Star, Combat Action Ribbon, Presidential Unit Citation as well as other personal, campaign and service awards. He is a past recipient of the U.S. Navy League’s Holland M. Smith Award for Operational Excellence as well as the Civil Affairs Association’s John H. Hildring Award. 

In his civilian career, BGen Day is the Chief of Staff of Intel Federal LLC, which is Intel Corporation’s subsidiary focused on the US public sector. He has previously held Corporate Finance, Investment Banking and Business Development roles at MBNA Bank, Merrill Lynch, and Nanosys, Inc.