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South Korean snipers stand guard while the US president visits an observation post in the Demilitarized Zone June 30, 2019, in Panmunjom, Korea.
\nBRENDAN SMIALOWSKI\/AFP via Getty Images<\/p>\n
South Korea launched a new military counterintelligence structure on Monday, formally dissolving the Defense Counterintelligence Command (DCC) \u2014 an agency that twice helped prop up authoritarian coups \u2014 and replacing it with three separate bodies whose explicit first mandate is to protect artificial intelligence systems and satellite infrastructure from foreign espionage. The institutional overhaul is the most consequential restructuring of South Korean military intelligence in nearly five decades \u2014 and it arrives at the precise moment the country’s satellite reconnaissance network has become genuinely worth stealing.<\/p>\n
Same Name, Same Building, New Rules \u2014 and a Changed Mission<\/p>\n
The launch ceremony took place Monday at the former DCC’s headquarters in Gwacheon, Gyeonggi Province, about 12 miles (19 km) south of Seoul. Defense Minister Ahn Gyu-back attended and presented the unit flag<\/a> to Maj. Gen. Pyun Moo-sam, the agency’s inaugural director, who had served as acting commander of the now-defunct command during its wind-down.<\/p>\n The new centerpiece organization, the Defense Counterintelligence Agency (DCA), identifies and assesses threats \u2014 collecting and analyzing intelligence on suspected espionage, foreign intelligence activity, and threats targeting defense companies and military technology. The DCC’s two other former functions, now separated out to prevent any recurrence of political misuse, go to a new Defense Security Support Group (internal security audits of corps-level and higher units) and to a dedicated security investigation unit inside the existing Criminal Investigation Command (arrests, searches and seizures, prosecution of suspected espionage and National Security Act violations). The Korea Herald’s reporting on the three-body structure confirms that all three functions were formerly<\/a> housed under a single command.<\/p>\n Under the old system, one agency controlled all three functions. The government’s stated rationale for splitting them: no single organization should ever again be able to gather intelligence on political opponents, investigate them, and pursue criminal charges \u2014 all without meaningful civilian oversight.<\/p>\n The ministry also named three specific technology domains the DCA is responsible for protecting: artificial intelligence systems, satellite infrastructure, and defense industry secrets. That last mandate includes security coverage for US Navy<\/a> maintenance, repair, and overhaul programs the South Korean military is jointly pursuing with American counterparts.<\/p>\n What the DCA Is Now Guarding<\/p>\n The satellite piece of that mandate is not abstract. South Korea’s Project 425, a military space reconnaissance program funded at approximately \u20a91.3 trillion (approximately $900 million USD), reached full operational status in November 2025 when the fifth and final satellite entered orbit<\/a> aboard a SpaceX Falcon 9 rocket from Cape Canaveral.<\/p>\n The constellation comprises one electro-optical and infrared (EO\/IR) satellite and four synthetic aperture radar (SAR) satellites. SAR imaging \u2014 which uses radio pulses rather than visible light \u2014 works through clouds and in complete darkness, giving the constellation all-weather, around-the-clock surveillance capability over the Korean Peninsula. Each SAR satellite carries a Thales Alenia Space payload built around a 5-meter deployable antenna<\/a> folded into 24 petals that opens in orbit to form a parabolic dish, achieving a resolution of roughly 30 centimeters per pixel (about 12 inches) \u2014 sufficient to distinguish individual vehicles at North Korean missile facilities.<\/p>\n Before Project 425, South Korea had no independent satellite imagery of North Korean military activity; it depended entirely on U.S. intelligence-sharing for real-time surveillance. The five-satellite constellation changed that equation \u2014 and in doing so, created a high-value intelligence target that North Korean and Chinese intelligence services have strong incentives to penetrate.<\/p>\n The current constellation allows revisit coverage of any point on the Korean Peninsula approximately every two hours<\/a>. South Korea is already planning a follow-on program of 19 additional small and ultra-small reconnaissance satellites intended to compress that interval to 30 minutes, closing a window wide enough for a road-mobile ballistic missile launcher to move and hide.<\/p>\n Protecting AI in a Space the Law Cannot Reach<\/p>\n The DCA’s AI protection mandate has a structural twist that matters to anyone tracking South Korean defense policy. South Korea’s Framework Act on Artificial Intelligence Development and Establishment of Trust \u2014 the AI Basic Act, which took effect January 22, 2026, and made South Korea the first Asia-Pacific country to enact comprehensive AI legislation \u2014 explicitly exempts AI systems<\/a> developed and deployed exclusively for national defense or security purposes from its regulatory framework.<\/p>\n The Enforcement Decree goes further: it specifically names counterintelligence affairs as excluded<\/a> from the act’s scope.<\/p>\n The practical effect is that the DCA’s AI counterintelligence tools \u2014 the systems it uses to detect foreign infiltration of South Korean defense AI programs \u2014 are governed by no civilian regulatory body. The only oversight mechanism is parliamentary accountability, which the reform’s critics acknowledge remains underdeveloped. That is not a criticism unique to South Korea; most democracies that have separated CI collection from prosecution have also struggled with the question of who watches the watchers once the watching is split across three agencies that all report to the same minister.<\/p>\n How South Korea Got Here: Three Generations of the Same Problem<\/p>\n The DCC’s lineage stretches back to 1977, when it was established as the Military Security Command<\/a> under the authoritarian government of Park Chung-hee. The institution’s darkest chapter came quickly: in December 1979, following Park’s assassination, then-Major General Chun Doo-hwan, commanding the Defense Security Command (the precursor organization), used his intelligence authority to arrest the Army chief of staff<\/a> on fabricated charges and seize control of the military \u2014 triggering a coup that led to seven more years of dictatorship. Chun’s ally in that operation, Roh Tae-woo, would also later become president. Both had commanded the institution that the DCA now replaces.<\/p>\n Reform efforts followed that 1979 episode, and again in 2018, when a martial law contingency document surfaced that the then-command had reportedly prepared. Each time, the organization was renamed \u2014 from Military Security Command to Defense Security Command (1991) to Defense Security Support Command (2018) to Defense Counterintelligence Command (2022) \u2014 but the concentration of authority<\/a> under a single chain of command survived every reorganization.<\/p>\n On December 3, 2024, that pattern repeated itself. Then-President Yoon Suk Yeol declared emergency martial law in a televised address; DCC personnel were among the forces deployed to the National Assembly and the National Election Commission; court proceedings have alleged that the agency helped plan operations targeting opposition lawmakers for potential detention. More than 190 lawmakers reached the chamber<\/a> and voted to lift the decree within hours.<\/p>\n Lt. Gen. Yeo In-hyung, the DCC’s commander, was arrested within two weeks and has since been indicted on treason-related charges<\/a>. Yoon himself faces insurrection charges for which prosecutors have sought the death penalty.<\/p>\n The DCC was formally dissolved July 31, 2026. Monday’s ceremony completed the transition.<\/p>\n Can Three Agencies Do What One Did \u2014 Faster?<\/p>\n The government’s structural logic for the three-way split is straightforward and defensible: preventing any single agency from controlling intelligence gathering, security oversight, and criminal investigation simultaneously is how every advanced democracy that has solved this problem solved it. The UK’s domestic counterintelligence service (MI5) does not have arrest powers; it relies on police for that. The U.S. separates the FBI (domestic CI and arrest authority), the CIA (offensive CI), and the Diplomatic Security Service (personnel and facility protection). Canada explicitly separates defensive counterintelligence from law-enforcement intelligence<\/a> into separate mandates.<\/p>\n South Korea’s three-way split follows this pattern. The design challenge it faces is the same one those countries face: what happens when a case begins with fragmentary signals that cannot yet justify a formal criminal investigation? In CI work, the standard sequence runs from suspicious indicator to monitored contact to intelligence case to criminal case \u2014 and each handoff is a moment when a tip-off can occur or evidence can disappear. Under the old DCC, all three functions were housed in the same building; under the new structure, they require interagency coordination that has to be built deliberately.<\/p>\n Seok Jae-wang, a professor in the Department of Disaster and Security Management at Konkuk University, said a formal standing body bridging the three organizations would be essential. Seok told the Korea Herald<\/a> that the most desirable approach would be to establish a standing intelligence and investigation consultative body involving the National Intelligence Service, the Criminal Investigation Command and the police, modeled on systems used in other advanced countries.<\/p>\n The ministry said it plans to establish formal guidelines governing when intelligence should be transferred between agencies and will operate consultative mechanisms to bridge the gap. A Defense Ministry official, speaking without attribution, acknowledged the structural tension<\/a>: while operational authority has been divided, the defense minister still holds ultimate control over all three organizations.<\/p>\n Does South Korea’s New Espionage Law Help?<\/p>\n The DCA’s launch coincides with a significant expansion of South Korea’s legal toolkit for handling exactly the threats it is now charged with detecting. In February 2026, the National Assembly passed an amendment to Article 98<\/a> of the Criminal Act that, for the first time in 73 years, expands the definition of espionage from acts committed for an “enemy country” \u2014 which South Korean courts had interpreted narrowly to mean North Korea \u2014 to acts committed for any foreign country or equivalent organization.<\/p>\n