National Guard
Brigadier General ERIN K. MCMAHON
  
Principal Deputy General Counsel, National Guard Bureau
Washington, DC
Since: January 2021
 Official Photo
SOURCE OF COMMISSIONED SERVICE  ROTC

EDUCATIONAL DEGREES
University of Arizona - BA - Political Science
Lewis & Clark College - JD - Law
United States Army War College - MSS - Strategic Studies

MILITARY SCHOOLS ATTENDED
The Judge Advocate General’s School, Judge Advocate Officer Basic Course
The Judge Advocate General’s School, Advanced Intelligence Law Course
The Judge Advocate General’s School, Judge Advocate Officer Advanced Course
Israel National SAR & Civil Defense School, International Crisis Management Seminar
United States Army Command and General Staff College
United States Army War College, Defense Strategy Course
United States Army Military Police School, Special Victims Unit Investigations
United States Army War College
The Judge Advocate General’s School, 46th Staff Judge Advocate Course
National Defense University, Reserve Component National Security Seminar
The Judge Advocate General’s School, 48th Staff Judge Advocate Course
Massachusetts Institute of Technology, Seminar XXI Program, Foreign Politics, International Relations, and the National Interest
National Security Studies Management Course (NSSMC)

FOREIGN LANGUAGE(S)  None Recorded

PROMOTIONS DATE OF APPOINTMENT
2LT 24 Dec 95
1LT 2 Jul 97
CPT 1 Aug 99
MAJ 10 Jun 06
LTC 8 Apr 11
COL 2 Jun 17
BG 8 Jan 21

FROM TO ASSIGNMENT
Jan 21 Present Principal Deputy General Counsel, National Guard Bureau, Washington, District of Columbia
Jun 15 Dec 20 Deputy Chief Counsel, National Guard Bureau- Judge Advocate, Arlington, Virginia
Jun 12 Jun 15 Chief of Staff, Legal Operations, National Guard Bureau- Judge Advocate, Arlington, Virginia
Jun 11 Jun 12 Deputy Chief, Operational Law, National Guard Bureau- Judge Advocate, Arlington, Virginia
Jun 10 Jun 11 Chief, Intelligence Law, National Guard Bureau- Judge Advocate, Arlington, Virginia
Nov 09 Jun 10 Operational Law Attorney, National Guard Bureau- Judge Advocate, Arlington, Virginia
Nov 08 Nov 09 XO, Office of the Chief Counsel, National Guard Bureau- Judge Advocate, Arlington, Virginia
Jul 07 Nov 08 Administrative Law Attorney, National Guard Bureau- Judge Advocate, Arlington, Virginia
Jun 06 Jul 07 Defense Task Force on Sexual Assault in the Military Services Legal Advisor, Office of the General Counsel, Pentagon, Washington, District of Columbia
Jun 05 Jun 06 Labor Attorney Advisor, Office of The Judge Advocate General, Pentagon, Washington, District of Columbia
Mar 05 Jun 05 Chief, Operational Law, Headquarters Company, 25th Infantry Division, Schofield Barracks, Hawaii
Mar 04 Mar 05 Chief, Operational Law, Headquarters Company, Combined Joint Task Force 76, Bagram Airfield, Afghanistan
Jun 03 Mar 04 Chief, Operational Law, Headquarters Company, 25th Infantry Division, Schofield Barracks, Hawaii
Nov 01 Jun 03 Civil Law Attorney, Headquarters Company, 25th Infantry Division, Fort Shafter, Hawaii
Nov 00 Nov 01 Trial Counsel, Headquarters Company, 2nd Infantry Division, Camp Casey, South Korea
Jun 00 Nov 00 Legal Writer and Instructor, Headquarters Company, US Army Maneuver Support Center, Fort Leonard Wood, Missouri
Apr 99 May 00 Legal Assistance Attorney, Headquarters Company, US Army Maneuver Support Center, Fort Leonard Wood, Missouri
Dec 98 Apr 99 Student, Judge Advocate Officer Basic Course, The Judge Advocate General's School, United States Army, Charlottesville, Virginia
Dec 95 Dec 98 Educational Delay, USAR Control GRP (OADO), Saint Louis, Missouri

SUMMARY OF OPERATIONAL ASSIGNMENTS DATE GRADE
Chief, Operational Law, Headquarters Company, Combined Joint Task Force 76, Bagram Airfield, Afghanistan Mar 04 - Mar 05 Captain
Trial Counsel, Headquarters Company, 2nd Infantry Division, Camp Casey, South Korea Nov 00 - Nov 01 Captain

US DECORATIONS AND BADGES
Bronze Star Medal
Defense Meritorious Service Medal (with 1 Bronze Oak Leaf Cluster)
Meritorious Service Medal
Army Commendation Medal (with 2 Bronze Oak Leaf Clusters)
Joint Service Achievement Medal (with Bronze Oak Leaf Cluster)
Army Achievement Medal (with 1 Bronze Oak Leaf Cluster)
Joint Meritorious Unit Award (with 1 Bronze Oak Leaf Cluster)
Army Superior Unit Award
National Defense Service Medal
Afghanistan Campaign Medal (with 1 Bronze Service Star)
Korean Defense Service Medal
Global War on Terrorism Service Medal
Armed Forces Reserve Medal (with Bronze Hourglass)
Army Service Ribbon
Army Overseas Service Ribbon (with Numeral 3)
Oregon Faithful Service Medal (with Bronze Hourglass)
Parachutist Badge
German Armed Forces Proficiency Badge (Gold)

 

 

As of: 10 Dec 21

 

The date of publication indicated on this biography reflects the most recent update. It does not necessarily reflect the date of printing.