North Korea's Complex Firepower Drill with Five Weapon Systems: Implications for Its Integrated Firepower Command System and ROK-U.S.-Japan Responses

Executive Summary

North Korea’s Coordinated Fire Strike Drill on September 12, which integrated four types of weapon systems—attack drones, strategic cruise missiles, large-caliber thermobaric multiple rocket launchers, and tactical ballistic missiles—in a single exercise, was more than a simple show of force. It explicitly stated an operational doctrine objective: verifying its integrated firepower command system. The drill took place immediately after the ROK-U.S.-Japan Freedom Edge and the U.S.-Japan-Australia Orient Shield exercises, held from September 7-11, demonstrating that North Korea's backlash against the regularized trilateral cooperation established since the Camp David summit is solidifying into an annual pattern. However, the Korean Central News Agency's claims of simultaneous impact and a 100% accuracy rate are unverified self-assessments, making both overestimation and underestimation—dismissing it as mere propaganda—risky. The attempt to automate command and control for the simultaneous arrival of dissimilar platforms increases the burden on the Korea Air and Missile Defense (KAMD) system to counter multiple threats concurrently. The possibility that North Korea-Russia military-technical cooperation is behind the advancement of its drone capabilities cannot be ruled out. The response should separate intelligence verification from deterrence posture management. It is crucial to maintain the regularity of trilateral exercises while concurrently undertaking the long-term task of transitioning KAMD's engagement control logic to a system capable of countering complex threats.

I. Situational Analysis

North Korea's Complex Attack Drill with Five Weapon Systems: A Situational Analysis

1. Background and Developments

On September 14, the Korean Central News Agency (KCNA) announced that a "Coordinated Fire Strike Drill of long-range artillery and missile sub-units of the combined units of all levels of the Korean People's Army" was conducted on September 12 [1]. The format of this announcement was itself unusual. Since early August, North Korea has repeatedly followed a pattern of state media silence following missile launches [12]. The September 12 launch was no different, with a day passing without any announcement. Only South Korea's Joint Chiefs of Staff (JCS) announced that it had detected a short-range ballistic missile launch from the Wonsan area [11][6]. Two days later, however, KCNA prominently and officially confirmed the event [4][6].

This time lag is not coincidental. A previous EAI analysis identified North Korea's announcement pattern as a three-stage structure of "commentary-launch-silence" [3]. This instance was also preceded by a statement from Minister of National Defence Kim Song-gi. He labeled the Freedom Edge exercise "provocative" and warned of a response with "more powerful and resolute action" [9]. Freedom Edge was a trilateral, multi-domain combined exercise involving the United States, Japan, and South Korea from September 7 to 11. During the same period, Japan, along with the U.S. and Australia, conducted its largest-ever Orient Shield exercise, centered in Hokkaido [16]. The Rodong Sinmun fiercely condemned this, describing it as an attempt by Japanese "neo-militarist forces" to "turn the archipelago into an 'unsinkable aircraft carrier'" [16]. A missile was launched from the Wonsan area in the early hours of September 12, immediately after the exercises concluded. The two-day delay before the official announcement is similar to the pattern observed in August [7][5].

2. Current Situation

The core of the KCNA report lies in the scale and integration of the drill. Sub-units selected from five artillery and missile combined units participated in the exercise [1]. Four types of weapon systems were mobilized: attack drones, strategic cruise missiles, large-caliber thermobaric multiple rocket launchers, and tactical ballistic missiles [1]. The fact that Pak Jong Chon, Vice Chairman of the Central Military Commission of the Workers' Party of Korea, and Yu Chang Son, Director of the General Staff Department's Artillery Bureau, personally supervised the drill indicates it was a high-priority event for the Party [1].

Yonhap News Agency characterized the launch as a "firepower strike drill" and emphasized that it was a response immediately following the trilateral ROK-U.S.-Japan exercises [4]. The Diplomat also reported that North Korea had confirmed the September 12 launch was a joint firepower drill, noting that the launch time detected by the South Korean military (around 5:20 a.m. on Saturday) matched precisely [6]. However, to date, neither Western nor South Korean media have independently verified North Korea's claims of "unity and simultaneity" or its accuracy rate. This reporting is thus limited by its complete reliance on KCNA's own announcements.

The background of North Korea's drone capabilities warrants attention. A separate analysis by The Diplomat suggests that Russia is substantively advancing North Korea's drone technology [14]. The analysis notes that Russia has transferred sensitive technologies, such as reactors for Najin-class nuclear submarines and air defense systems, in exchange for North Korea's dispatch of troops and provision of weapons to Russia. It raises concerns that this cooperation could extend to more sophisticated drone systems in the future [14]. The possibility cannot be ruled out that the "attack drones" featured in this drill are not merely an indigenous development but a product of North Korea-Russia military-technical cooperation.

3. Key Actors and Positions

North Koreaframes this drill as a "defensive response." Minister of National Defence Kim Song-gi characterized Freedom Edge as a U.S.-led provocation using North Korea's "nuclear and missile threat" as a pretext [9]. Separately, the Rodong Sinmun, through a channel directed at Japan, condemned Japan's Orient Shield exercise as an attempt to revive "neo-militarism" [16]. As a previous EAI analysis pointed out, North Korea's bifurcated messaging structure—with statements toward Japan issued under Kim Yo Jong's name and those toward the U.S. and Japan under the names of the defense minister or military commentators—was maintained in this instance [7][5]. In his September 10 speech commemorating the founding of the regime, Kim Jong Un praised troops deployed in "overseas military operations," suggesting that the combat experience gained from deploying forces to Russia may have contributed to the confidence displayed in this integrated weapons drill [18].

South Koreais maintaining both military vigilance and its deterrence posture. On September 9, in response to increased North Korean activity near the Military Demarcation Line (MDL), ROK and U.S. commanders in the border region visited the eastern front to reaffirm their combined defense posture [17]. Defense officials are separately monitoring the rise in North Korean activities near the MDL [17].

United States and Japanproceeded with the Freedom Edge and Orient Shield exercises as planned, thereby maintaining the trend of regularizing trilateral cooperation. This suggests that the Pentagon's policy line has advanced the trilateral cooperative framework according to its training schedule, on a separate track from former President Trump's directive to scale down Ulchi Freedom Shield (UFS) [3].

International Monitoringis also operating in parallel. From mid-August to early September, New Zealand dispatched two warships to Japanese waters to monitor illicit maritime activities by North Korea, such as ship-to-ship transfers [15]. This demonstrates that the monitoring of sanctions enforcement against North Korea continues independently of the military exercise cycle.

4. Key Issues

The first issue is whether the 'simultaneous integration' of dissimilar weapon systems was achieved. Drones, cruise missiles, multiple rocket launchers, and ballistic missiles have different flight profiles. If KCNA's announcement that strike systems with such varied characteristics—low-speed/low-altitude, low-altitude precision, short-range saturation, and high-angle/high-speed—were operated in a single drill is true [1], it suggests a significant advancement in the automation of its integrated firepower command system. However, claims such as "100% accuracy" and "unity and simultaneity" are unverified self-assessments and cannot be accepted at face value.

The second issue is the political implication of the announcement's timing. The fact that North Korea disclosed the drill two days after the launch, specifically right after the conclusion of the trilateral ROK-U.S.-Japan exercises, indicates a stronger emphasis on narrative competition than on military effectiveness [3]. Separate from demonstrating its actual strike capabilities, Pyongyang is pursuing a parallel messaging strategy to deny the legitimacy of ROK-U.S.-Japan cooperation.

The third issue is the extent to which North Korea-Russia technical cooperation influenced the advancement of these weapon systems. While it has not been confirmed whether the transfer of Russian drone technology was actually reflected in this drill [14], the long-term impact of technology transfers—made in exchange for troop deployments—on the deterrence framework on the Korean Peninsula is a matter requiring continuous monitoring.

The fourth issue is the increased burden on South Korea to counter multi-layered threats. If the capability for simultaneous arrival of dissimilar platforms becomes operational, its interceptor systems will face the greater challenge of dealing with targets of different trajectories and speeds at the same time. This is an issue that needs to be specifically addressed in future ROK-U.S. Nuclear Consultative Group (NCG) meetings and discussions on the combined defense posture.

II. In-Depth Analysis

North Korea's Complex Attack Drill with Five Weapon Systems: An In-Depth Analysis

1. Analysis of Root Causes

The immediate cause of this drill is clear: the trilateral, multi-domain combined exercise 'Freedom Edge' involving the U.S., Japan, and South Korea from September 7 to 11, and the 'Orient Shield' exercise, Japan's largest-ever, conducted during the same period with Australian participation [16]. North Korean Minister of National Defence Kim Song-gi labeled Freedom Edge "provocative" and foreshadowed a "more powerful and resolute action" [9]. This warning was followed by an actual firepower demonstration.

However, a linear interpretation of this cause-and-effect relationship misses the core issue. The three-stage "commentary-launch-silence" pattern, identified in a previous EAI analysis, was repeated in the launches on August 6 and August 12 [7][5]. In other words, this latest launch was not an impromptu reaction to a specific exercise but the latest instance of an established response routine. The root cause is not the individual ROK-U.S.-Japan exercises but the trilateral cooperative structure that has been regularized since the Camp David summit. The Rodong Sinmun's characterization of Orient Shield as an attempt by Japanese "neo-militarist forces" to "turn the archipelago into an 'unsinkable aircraft carrier'" [16] shows that North Korea perceives this cooperation not as a sum of individual drills but as an attempt to build an encirclement network against it.

A second causal factor is the internal need to verify military integration capabilities. KCNA explicitly stated that mastering the "integrated firepower command system" was a primary objective of the drill. This suggests that, separate from its external demonstration purposes, there is an internal demand to enhance the level of automation in the North Korean military's command and control. The personal supervision by Pak Jong Chon, Vice Chairman of the Party's Central Military Commission, and Yu Chang Son, Director of the General Staff Department's Artillery Bureau [1], supports the view that this drill was not merely a ceremonial show of force but had the character of an operational doctrine validation.

2. Structural Context

Security Structure: Asymmetric Command and Control Competition

The structural significance of this drill lies in the heterogeneity of the weapon systems involved. Attack drones, strategic cruise missiles, large-caliber thermobaric multiple rocket launchers, and tactical ballistic missiles [1] have fundamentally different flight profiles. Drones fly at low speeds and low altitudes for extended periods. Cruise missiles fly at low altitudes with precision navigation. Ballistic missiles are launched at a high angle and descend at high speed in a short time. Multiple rocket launchers strike short-range targets quickly along a parabolic trajectory. To make these four systems arrive at a single target or target group simultaneously requires an automated fire control algorithm that can calculate the launch times for each system in reverse. KCNA's specific mention of "five artillery and missile combined units" [1] can be read as an intention to emphasize that this was not a performance test of a single weapon but an integrated command and control exercise among multiple echelons.

This directly increases the operational burden on South Korea's interceptor systems. The Korea Air and Missile Defense (KAMD) system typically employs an interceptor asset allocation logic designed on the premise of a single threat type, namely ballistic missiles. However, if low-altitude cruise missiles, drones, and rocket artillery shells approach simultaneously with ballistic missiles, prioritizing interceptor assets and allocating radar resources becomes far more complex. This raises the need for the Nuclear Consultative Group (NCG), a forum for alliance and multilateral security discussions, to expand its focus from the conventional threats of nuclear and ballistic missiles to scenarios involving simultaneous responses to complex threats.

Political Structure: Bifurcated Messaging Channels and Delayed Announcements

North Korea's method of announcement also follows a structural pattern. Since August, state media has repeatedly followed a practice of remaining silent on the day of a missile launch and confirming it only one or two days later [12]. The September 12 launch was no exception. Although South Korea's JCS detected and announced a short-range ballistic missile launch from the Wonsan area on that day [11][6], KCNA did not officially frame it as a "Coordinated Fire Strike Drill" until two days later, on September 14 [1]. This time lag suggests the existence of an internal procedure to first define the nature of the military action before issuing an external message.

As a previous EAI analysis noted, North Korea's external messaging is bifurcated into a channel for Japan under Kim Yo Jong's name and a channel for the U.S. and Japan under the names of the defense minister or military commentators [3][7]. The preliminary warning statement by Minister of National Defence Kim Song-gi [9] and the subsequent KCNA report confirming the drill [1] correspond to an activation of the latter channel. This once again demonstrates the regime's priority of separating internal tension management from its hardline external stance.

Military-Technical Structure: The External Variable of North Korea-Russia Cooperation

The emergence of drone capabilities is set against the structural variable of North Korea-Russia military-technical cooperation. According to an analysis by The Diplomat, Russia has been transferring sensitive technologies, such as reactors for Najin-class nuclear submarines and air defense systems, in exchange for North Korea's deployment of troops and provision of weapons to Russia [14]. This has also raised concerns that attack doctrines combining low-cost drones with precision munitions, proven in the war in Ukraine, are flowing into North Korea via Russia [14]. It is difficult to completely rule out the possibility that the "attack drones" [1] featured in this drill are a product of North Korea-Russia technology transfer, going beyond the stage of indigenous development. This issue is directly linked to a key monitoring point for the Korean Peninsula and North Korea: "the impact of closer North Korea-China-Russia ties on deterrence on the Korean Peninsula."

3. Historical Precedents and Comparison with Similar Cases

This is not North Korea's first complex or integrated firepower drill. What distinguishes this case, however, is the "simultaneous operation of dissimilar platforms within a single drill." In the past, North Korean missile launches typically involved the consecutive firing of a single type or similar types of missiles. The launches on August 6 and 12 were also singular provocations centered on short-range ballistic missiles [7][5]. This time, a qualitative shift is perceptible in that drones, cruise missiles, multiple rocket launchers, and ballistic missiles were all deployed within the framework of a single exercise.

This shift runs parallel to doctrines proven on the battlefields of Ukraine. The tactic of using low-speed, low-cost drones to disrupt and deplete air defenses before striking key targets with precision-guided munitions is an attack pattern repeatedly observed in the Russia-Ukraine war. The evidence that North Korea is observing this doctrine and attempting to incorporate it into its own training system becomes more persuasive when combined with indications of Russian technology transfers to the North [14]. However, a clear limitation is that neither the South Korean military nor Western media has independently verified KCNA's claim of "100% accuracy" [4][6]. Historically, North Korea's claims about the success rates of its new weapon tests have repeatedly relied solely on its state media announcements.

The cyclical pattern of ROK-U.S.-Japan exercises and North Korean provocations is not a new phenomenon in itself. During the ROK-U.S. combined exercises in 2016-2017, North Korea also showed a pattern of responding with missile launches during or immediately after the drills. However, as a previous EAI analysis has already pointed out, with the regularization of trilateral exercises like Freedom Edge and Orient Shield since the Camp David summit [16], North Korea's response cycle is also showing a stronger tendency toward becoming regularized [3].

4. Key Variables Shaping Future Developments

The first variable is the actual maturity of the integrated firepower command system. Based on KCNA's self-reporting alone, it is difficult to judge whether the claimed "unity and simultaneity" is achievable in a real combat situation. A substantive assessment will only be possible after the ROK and U.S. militaries accumulate their own detection and analysis data on impact timing, target accuracy, and other factors from repeated similar drills in the future.

The second variable is the pace at which North Korea-Russia technical cooperation deepens. Depending on the extent to which its drone systems have absorbed Russian technology, North Korea's low-cost saturation attack capability could make a qualitative leap in a short period [14]. This is a key indicator that must be continuously tracked in the context of the Korean Peninsula and North Korea.

The third variable is whether the regularization of trilateral ROK-U.S.-Japan exercises will continue. If Freedom Edge and Orient Shield become fixed annual events, North Korea's responsive drills are also likely to be incorporated into an annual cycle [3]. In that case, South Korea's response challenge must shift from immediate reactions to individual launches toward the medium- to long-term task of building a system to counter complex, simultaneous threats.

The fourth variable is whether North Korea's announcement practices will change. For this drill, KCNA made a full disclosure two days after the launch [1]. This is a slight departure from its past pattern of consistent silence [12]. If North Korea pivots toward actively publicizing similar complex drills each time they are conducted, it could be interpreted as a sign of an increasing emphasis on external psychological warfare.