An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.




Major Christopher M. Berry
Commanding Officer
Defensive Cybersecurity Operations, Company A

Originally from Jamestown New York, and a graduate of Miami University in Oxford Ohio, Major Berry began his Marine Corps Career in 2006 after being commissioned a 2nd Lieutenant through the Platoon Leader’s Course (PLC) program.  Upon completion of The Basic School (TBS), Berry attended the Air Intelligence Officer Course (AIOC) in Dam Neck Virginia.  His first duty station after AIOC graduation was at Marine Corps Air Station (MCAS) Iwakuni in Japan.  His billet was as the squadron intelligence officer for VMFA(AW)-242 where he participated in many joint and combined exercises throughout INDOPACOM.  After a promotion, Major Berry became the group intelligence officer for MAG-12 (also at MCAS Iwakuni) where other duties included being the ATFP, Plans, and Targeting officer.  In June 2011 Major Berry reported into 1st Intelligence Battalion at Camp Pendleton California, and after a short tenure as the Assistant Operations Officer, Berry was sent to the MAGTF Intelligence Officer Course (MIOC) and received the MOS 0202.   When the opportunity for a deployment arose Major Berry volunteered for an SFA-AT (Security Force Assistance Advisor Team) mentoring and advising the 5th BDE ANCOP (Afghanistan National Civil Order Police) in Lashkar-Gah Afghanistan in March 2012.  This deployment entailed enhancing the force protection for the 13 man team, advising his afghan counterpart, and ultimately helped to develop the intelligence capabilities of Afghanistan.   Upon return to CONUS in March 2013 Major Berry resumed his duties as the assistant Operations Officer for 1st Intelligence Battalion for a short period of time before he executed his EAS in August 2013. 

A small (six-month) hiatus in the Individual Ready Reserve (IRR) allowed Major Berry to start a family; once situated Major Berry joined 1st Battalion 24th Marines at Selfridge ANGB Michigan in February 2014 as the Battalion Intelligence Officer and Scout Sniper Platoon Commander.   During his time with the unit Major Berry attended the Scout Sniper Unit Leaders Course, and Intelligence Tactics Instructor Course (ITI) and participated in exercises Heavy Metal, Mountain Warfare Training Center (MWTC), and Integrated Training Exercise (ITX).      

In April of 2017 Major Berry answered the call to mobilize with Marine Corps Forces Cyberspace Command (MARFORCYBER).  Berry served as the G-33 Department of Defense Information Network (DODIN) Operations Officer in the Command Operations Center (COC) working notable incidents/compromises such a “Wanna Cry” and “Not Petya”.   

After earning his stripes in the G33 Maj Berry moved offices to become the the Plans and Targeting Officer (G-25).  Here he chaired the Commander’s Decision Board and worked to create the Marine Corps’ first Big Data Platform (BDP).  Maj Berry finished his mobilization in April 2020 as the Cyberspace Intelligence Branch (CIB) OIC responsible for the entire Production and Analysis (P&A) of the MARFOR.  That is also were Berry completed the Marine Corps Command and Staff Distance Education Program (CSC-DEP).    

Maj Berry then joined the Marine Corps Cyberspace Warfare Group (MCCYWG) Individual Mobilization Augmentee Detachment (IMA Det) as the Operations Officer standing up a Capture the Flag (CTF) team comprised of IRR Marines, and instantiating a Reserve Cyberspace Protection Team (R-CPT) to execute real-world operations.  

As of September 2022, Major Berry has been the Commander of Alpha Company Defense Cyberspace Operations Internal Defensive Measures (DCO-IDM) in Concord California.  During this time, he has lead Marines during exercises RESOLUTE SENTINTEL, CYBER YANKEE, CYBER DAWN, CYBER HARMONY, TRADE WINDS and even represented MARFORRES for the DCO SUMMIT. 

Major Berry’s civilian occupation is as a federal employee (GG-2210-14) working for U.S. CYBERCOM in the J38 Access Management Branch as an Access Coordinator.  Responsible for drawing on combined technical and functional expertise to advise the J3/Command Leadership and inform the Cyber Mission Force (CMF) decision making on close access operations.