October 20, 2026

Commander, Massachusetts Army National Guard

Brigadier General Peter E. Fiorentino

Brigadier General Peter Fiorentino is currently assigned as the Commander of the Massachusetts Army National Guard.

General Fiorentino began his career in 1987, when he entered basic training in the United States Navy, serving 7 years enlisted before joining the Massachusetts National Guard with the 42nd Division Artillery in 1994. He then received his commission in 1996 as a Second Lieutenant of Field Artillery, from the Officer Candidate School Program at the Massachusetts Regional Training Institute. He held every key leader assignment as a basic branch Artilleryman.  Along with a number of staff assignments at the operational and strategic levels, Brigadier General Fiorentino’s key leadership assignments include, Commander, Headquarters and Headquarters Battery, 102nd Field Artillery, Commander 1st Battalion 101st Field Artillery, Commander 51st Troop Command, Commander 151st Regional Support Group, Deputy Commanding General for Support, 42nd Infantry Division, and Deputy Commanding General for Maneuver, 42nd Infantry Division.

General Fiorentino has mobilized many times in support of national defense both here and abroad. In 2004-2005, he mobilized in support of Operation Iraqi Freedom, 1st BN, 102nd Field Artillery (RAOC), Detainee Operations. In 2025-2026 he would then mobilize for Operation Spartan Shield, and during major combat operations in Operation Epic Fury. In addition to these mobilizations, General Fiorentino has participated in numerous Homeland Security Missions, most notably Commanding Task Force Freedom during the 2020 US Capital Response.

During the week, Brigadier General Fiorentino is an Assistant Adjutant General for the Commonwealth of Massachusetts Military Division.

EDUCATION

1996, Johnson & Wales University, Bachelor of Science, Administrative Management, Providence, Rhode Island 2011, Salve Regina University, Master of Arts, International Relations, Newport, Rhode Island 
2019, United States Army War College, Master of Strategic Studies, Carlisle, Pennsylvania 
2022, Harvard University, Certificate, Leadership in Homeland Security, Cambridge, Massachusetts
2024, NORTHCOM, Certificate, Joint Task Force Commander Training Course, Colorado Springs, Colorado
2024, Harvard University, Certificate, Leadership in Crisis General and Flag Officer’s Seminar, Cambridge, Massachusetts

ASSIGNMENTS

  1. October 2026 – Present, Land Component Commander, Massachusetts Army National Guard
  2. April  2025 – September 2026, Deputy Commanding General for Maneuver, (DCG-M), 42nd Infantry Division, Troy, New York
  3. January 2024 to April 2025, Deputy Commanding General for Support, (DCG-S), 42nd Infantry Division, Troy, New York
  4. August 2021 – January 2024, Commander, 51st Troop Command, Wellesley, Massachusetts
  5. August  2019 – July 2021, Commander, 151st Regional Support Group, Reading, Massachusetts 
  6. September  2017 – July 2019, Commander, Headquarters 1st Battalion 101st Field Artillery, Brockton, Massachusetts 
  7. October  2016 – August 2017, Deputy Commander, 151st Regional Support Group, Reading, Massachusetts
  8. February  2016 – September 2016, Executive Officer, 151st Regional Support Group, Reading, Massachusetts
  9. July  2013 – January 2016, Deputy G1, Joint Force Headquarters-Massachusetts, Hanscom Air Force Base, Massachusetts 
  10. September  2012 – June 2013, Assistant S3, 51st Troop Command, Wellesley, Massachusetts 
  11. October  2009 – August 2012, Casualty Assistant/Military Honors OIC, Joint Force Headquarters-Massachusetts, Milford, Massachusetts 
  12. January  2009 – September 2009, Chief, Plans and Action Branch, Joint Force Headquarters-Massachusetts, Milford, Massachusetts 
  13. September  2008 – December 2008, Executive Officer, Headquarters 1st Battalion 101st Field Artillery, Brockton, Massachusetts 
  14. July  2006 – August 2008, S3, Headquarters 1st Battalion 101st Field Artillery, Brockton, Massachusetts 
  15. December  2005 – June 2006, Commander, Headquarters 1st Battalion 102nd Field Artillery, Quincy, Massachusetts 
  16. November  2004 – November 2005, Executive Officer, Headquarters 1st Battalion 102nd Field Artillery, Quincy, Massachusetts and Operation Iraqi Freedom, Camp Bucca and Abu Ghraib, Iraq 
  17. May  2003 – October 2004, Commander, Headquarters 1st Battalion 102nd Field Artillery, Quincy, Massachusetts 
  18. December  2002 – April 2003, Fire Direction Officer, Headquarters 1st Battalion 102nd Field Artillery, Quincy, Massachusetts 
  19. January  2002 – November 2002, Fire Support Officer, Headquarters 1st Battalion 102nd Field Artillery, Rehoboth, Quincy, Massachusetts 
  20. October  2001 – December 2001, S1, Headquarters 1st Battalion 102nd Field Artillery, Quincy, Massachusetts 
  21. November 1999 – September 2001, Fire Support Officer, Headquarters 1st Battalion 101st Field Artillery, New Bedford, Massachusetts
  22. May 1999 – October 1999, Fire Direction Officer, Battery C 1st Battalion 101st Field Artillery, Fall River, Massachusetts
  23. January 1997 – April 1999, Recon Survey Officer, Headquarters 1st Battalion 101st    Field Artillery, New Bedford, Massachusetts 

AWARDS AND DECORATIONS

Legion of Merit (with 2 Bronze Oak Leaf Clusters)
Bronze Star Medal
Defense Meritorious Service Medal
Meritorious Service Medal (with 4  Bronze Oak Leaf Clusters)
Army Commendation Medal (with 2  Bronze Oak Leaf Clusters)
Air Force Commendation Medal (with  2  Bronze Oak Leaf Clusters)
Army Achievement Medal (with  1  Bronze Oak Leaf Cluster)
Army Reserve Components Achievement Medal (with  1  Bronze Oak Leaf Cluster)
Naval Reserve Meritorious Service Medal 
National Defense Service Medal (with  1  Bronze Star)
Iraq Campaign Medal (with 1 Bronze Service Star)
Global War on Terrorism Expeditionary Service Medal
Global War on Terrorism-Service Medal 
Armed Forces Service Medal (with  1  Bronze Star)
Humanitarian Service Medal
Military Outstanding Volunteer Service Medal
Armed Forces Reserve Medal (with Gold Hourglass and M device)
Army Service Ribbon
Overseas Service Ribbon (2nd Award)
Army Reserve Components Overseas Training Ribbon
Combat Action Badge (2nd Award)
Joint Meritorious Unit Award

PROFESSIONAL MEMBERSHIPS AND AFFILIATIONS

National Guard Association of the United States
National Guard Association of Massachusetts
Veteran’s Association of the Second Corps of Cadets
Veterans of Foreign Wars
United States Field Artillery Association (Ancient Order of Saint Barbara)

EFFECTIVE DATES OF PROMOTION

Second Lieutenant 12 August 1996
First Lieutenant 12 August 1998
Captain 3 October 2000
Major 13 October 2006
Lieutenant Colonel 13 September 2012
Colonel 1 September 2019
Brigadier General 16 January 2024 

(Current as of October 2026)