Puerto Rico was an “Exceptional Training Location” for Counterintelligence Exercise, New Documents Reveal

The Army Reserve said it was not able to provide more documents, “in part,” because records were “not properly archived.”

Puerto Rico was an “Exceptional Training Location” for Counterintelligence Exercise, New Documents Reveal
Collage: Heavy Weather. Source: FOIA | Ksaraf at English Wikipedia, CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons
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If you made your way through masses of tourists to enjoy the breeze and beaches of San Juan during the summer of 2023, there's a chance you might have unknowingly passed right next to counterintelligence agents honing their craft.

Documents I obtained reveal new details about Vigilant Defender 23, the "largest counterintelligence training event in US Army Reserve Command history." The exercise was hosted by the 752nd Military Intelligence Battalion (Counterintelligence), Interrogation Group, and Military Intelligence Readiness Command (MIRC).

“Puerto Rico provided an exceptional training location offering language and environment complexities for attendees to navigate,” reads one of the documents obtained through a Freedom of Information Act (FOIA) request. 

Redacted photos from a presentation on Vigilant Defender 23. Source: FOIA