91st Cyber Brigade

91st Cyber Brigade
Active	2017-present
Country	United States
Branch	Army National Guard
Type	Cyber
Size	Brigade
Garrison/HQ	Fort Belvoir, Virginia
Motto(s)	UMBRA BELLATORES (Shadow Warriors)
Commanders
Current commander	Col. Gerald Mazur
Insignia
91st Cyber Brigade DUI

The 91st Cyber Brigade the "Shadow Brigade" is a unit of the Army National Guard since September 2017 stationed at Fort Belvoir, Va. ^[1] The Brigade's mission is to provide training and readiness in cyber security and operational control in the cyber realm. ^[2]

Subordinate Units

• 123rd Cyber Protection Battalion (Virginia NG) ^[3]
• 124th Cyber Protection Battalion (Virginia NG)
• 125th Cyber Protection Battalion (South Carolina NG)
• 126th Cyber Protection Battalion (Massachusetts NG)
• 127th Cyber Protection Battalion (Indiana NG)
• Cyber Protection Team 169 (Maryland NG)
• Cyber Protection Team 170 (Georgia NG)
• Cyber Protection Team 171 (California NG)
• Cyber Protection Team 172 (Michigan NG)
• Cyber Protection Team 173 (New York NG)
• Cyber Protection Team 174 (Colorado and Utah NG)
• Cyber Protection Team 175 (Alabama, Kentucky and Tennessee NG)
• Cyber Protection Team 176 (Illinois and Wisconsin NG)
• Cyber Protection Team 177 (Minnesota NG)
• Cyber Protection Team 178 (Mississippi NG)
• Cyber Protection Team 179 (Nebraska NG)

References

1. "Shadow Warriors – Army National Guard Stands Up Its First Cyber Brigade". Citizen-Soldier Magazine. January 12, 2018. Retrieved July 7, 2025.
2. "US Army Cyber Command Our Units". US Cyber Command. Retrieved July 7, 2025.
3. "91st Cyber Brigade". Virginia Army National Guard. May 2025. Retrieved July 7, 2025.