The Daeho Kim Jong-seo carries its greatest significance in expanding the South Korean Navy's ballistic missile capability from detection and tracking to interception. The existing Sejong the Great-class Aegis destroyers could detect and track North Korean ballistic missiles but lacked the ability to shoot them down. The Jeongjo the Great-class, including the Daeho Kim Jong-seo, incorporates the capacity to operate sea-based ballistic missile interceptors, meaning that once the vessel enters service and the interceptors are loaded, it will be able to stop enemy missiles directly at sea.
President Lee Jae-myung's remarks at the launching ceremony held at HD Hyundai Heavy Industries' Ulsan shipyard on the 30th — "Our seas must be defended by our own strength. The same goes for our skies and our land" — as he called for stronger independent defense capabilities, are read as a reflection of that confidence. At the ceremony, Lee stressed that "self-reliant defense is sovereignty itself."
"Security that leans on another's strength wavers along with it whenever that country's circumstances change," Lee said. "That is a reality we are already witnessing at this very moment." He added, "Only when we can defend ourselves can we decide our own future."
Lee applied that symbolism of self-reliant defense to the Daeho Kim Jong-seo. Once offensive armaments such as ship-to-ground ballistic missiles are fully installed, the vessel will strengthen not only defense but also long-range strike capability against key North Korean nuclear and missile targets. The result is a marked expansion of the maritime component of Korea's three-axis system, which comprises the Kill Chain for detecting signs of a North Korean missile launch and responding preemptively, the Korea Air and Missile Defense system (KAMD) for intercepting incoming missiles, and Korea Massive Punishment and Retaliation (KMPR) for striking the leadership and core facilities in a contingency.
Moon Sung-mook, head of the Unification Strategy Center at the Korea Research Institute for National Strategy, said combining the Navy's mobility with the long-range detection of the Aegis system "can widen the response range from the earliest signs of a North Korean missile launch through its flight phase." He added that it "carries the significance of extending the operational space of Korea's three-axis system from land and air to the sea." Even if North Korea diversifies its launch points and flight paths, the options for detecting and intercepting missiles at sea increase. The so-called shield at sea grows thicker.
After performance evaluations and sea trials, the ship is scheduled for delivery to the Navy in December next year, completing a fleet of six Aegis destroyers — three of the Sejong the Great-class and three of the Jeongjo the Great-class. Shin Beom-chul, senior research fellow at the Sejong Institute, said the milestone means "the Navy's Aegis destroyer force structure has effectively entered its final stage." He added, "With North Korea's nuclear and missile threats growing more sophisticated, the detection, tracking and interception capabilities of the maritime missile defense network will become that much denser."
Lee also signaled his commitment to strengthening the defense industry that day. Calling the sector a core pillar driving both national security and the economy, he pledged to "ensure that new technologies are put into service as quickly as possible." Lee said, "There was a time when we borrowed, and a time when we bought. Now the Republic of Korea has become a country that designs, builds and operates the world's finest warships on its own." Of the Daeho Kim Jong-seo, he said it is "packed with radar that detects targets hundreds of kilometers away, weapons systems that analyze hundreds of targets, and the software that ties it all together," underscoring once again the technological capability of Korea's defense industry.
Lee also laid out the direction for expanding naval forces. "Going forward, our Navy will steadily secure core assets of self-reliant defense, including nuclear-powered submarines and manned-unmanned mother ships," he said. The remarks are read as a plan to build a multilayered maritime deterrence system countering North Korea's nuclear, missile and submarine threats by adding nuclear-powered submarines and combined manned-unmanned forces to a maritime missile defense network centered on Aegis destroyers.
Before attending the launching ceremony, Lee visited the Armed Forces Capital Hospital in Seoul to meet soldiers wounded in a landmine explosion in the Demilitarized Zone (DMZ) on the 21st, along with their families. He called for sufficient support and recognition so that they can focus on treatment and rehabilitation, and promised necessary assistance for soldiers who wish to continue their military service.
There was, however, no announcement of measures corresponding to the mine incident and no separate message criticizing North Korea. Shin said, "The fact that our soldiers were wounded on our own territory by a North Korean mine calls for a resolute response," adding that "a clearer security message needs to come out on the occasion of Armed Forces Day."
