Latvian authorities have arrested a citizen for allegedly spying for Russia’s GRU military intelligence service, focusing on the country’s defense sector. The suspect, whose identity remains undisclosed, was taken into custody following a coordinated operation by Latvia’s State Security Service (SSS) and Military Intelligence (MIDD). Investigations reveal that the individual gathered and transmitted sensitive information regarding NATO forces stationed in Latvia, private aviation infrastructure, and logistics for acquiring prepaid mobile SIM cards—all at the behest of Russian intelligence. Conducted raids on October 17-18 led to the seizure of data carriers linked to the suspect, and the individual has been remanded in custody as the investigation progresses. This incident highlights growing concerns about espionage and security threats in the Baltic region, particularly in light of increasing tensions with Russia and recent intrusions into NATO airspace. As European nations continue to bolster their defenses, incidents like this underscore the imperative for vigilance and preparedness against foreign intelligence operations, which could undermine regional stability and security in a geopolitically sensitive environment.