Peachey’s next assignment was to the Joint Multinational Readiness Center (JMRC) in Hohenfels, Germany from 2016 to 2019. During his first year at JMRC he served as the OPFOR (1-4 IN) Battalion S2, where he participated in numerous CTC rotations and helped lead the implementation of lessons learned from Russian TTPs in Eastern Ukraine. Over the next two years, Peachey served as the JMRC intelligence planner and as the BDE A/S2 OC/T on the Mustang Team. He played a key role in developing and implementing a LSCO-based scenario still used at JMRC and subsequently coached and trained numerous brigade intelligence sections during their rotations.
After leaving JMRC in 2019, Peachey attended resident CGSC at Fort Leavenworth, Kansas, where he was selected as one of twelve Art of War Scholars for the CGSC class of 2020, one of three master strategists, and received the Iron Pen award for being published in the Military Intelligence Professional Bulletin. As part of the Art of War Scholars, he completed a master’s in military art and science, with a thesis focusing on how human sensing can be employed to address a deep sensing gap. Peachey was then selected and attended the School of Advanced Military Studies (SAMS) where he completed a Master of Arts in Military Operations, with a monograph addressing the command and control of convergence in joint all-domain operations.
Upon completing SAMS, Peachey was assigned to the 3rd Infantry division to complete his utilization assignment as the division’s intelligence planner. In that role, he served as the lead planner for the activation of the 103rd IEW BN, the administrative and tactical planner of warfighter 22-04, and acted as the division’s historian. Near the end of his utilization tool, Peachey deployed in support of the XVIII Airborne Corps (TF Dragon) G5 to facilitate partner nation planning in response to Russian aggression in Ukraine. While part of XVIII ABC, he supported planning to establish the Security Assistance Group – Ukraine.
After supporting TF Dragon, Peachey became the BCT S2 for 1st BDE, 3ID, forward deployed in Germany in response to the war in Ukraine. During his time at the brigade, he redeployed the intelligence enterprise back to Fort Stewart, Georgia, executed a MITS IV and III, enabled brigade modernization efforts, scored a 100% on the FORSCOM G.R.E.A.T inspection, and helped plan the brigade’s command post exercise way ahead for its NTC train up. After BCT S2 time, Peachey served as the division’s analysis and control element chief during the division’s forward deployment to Poland. Throughout this deployment, the 3ID ACE provided federated intelligence support to SAG-U, executed Austere Challenge 24, and developed staff studies in support of NATO regional defense planning.