The recently released Call of Duty: Modern Warfare 4 depicts North Korea’s destructive invasion of South Korea, featuring the collapse of defensive positions, urban warfare, and a counteroffensive by US-ROK forces. Although fictional, the main scenario of the game reflects a familiar premise that North Korea would overwhelm South Korea’s defense perimeters, occupy Seoul, and ultimately conquer the Korean Peninsula. Nevertheless, modern military reality suggests otherwise. It is more likely that Pyongyang could pursue limited territorial acquisition, hamper South Korea’s military response, and exploit nuclear blackmail in order to achieve political advantages without militarily defeating the South.
The conventional invasion delineated in Modern Warfare 4 could confront substantial operational hurdles. South Korea has technologically predominant fighter aircraft, advanced reconnaissance capabilities, and modern mechanized divisions, backed up by approximately 28,500 US troops on the peninsula. Moreover, Pyongyang would experience difficulties in concealing the logistical preparations necessary for a sustained offensive across the Demilitarized Zone (DMZ). Even if its forces succeeded in a localized breakthrough, it would be extremely challenging to maintain their advance under aerial attacks by US-ROK combined forces.
More importantly, capturing Seoul would not necessarily lead to a durable military victory. As time elapses, North Korea would face comprehensive urban combat, logistical difficulties, and continuous allied counterattacks—initially by the USFK, then by the USFJ, and eventually by reinforcements from the continental United States. The North Korean leadership, therefore, might conclude that less ambitious military operations could ensure greater political benefits at lower military costs. In that sense, North Korea could create a crisis that would compel Washington and Seoul to make politically unpalatable decisions, instead of completely defeating South Korea militarily.
Limited Aggression Instead of Full-Scale Invasion
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In that context, a more realistic scenario would be conducting a limited attack in and around South Korea’s northwestern islands near the Northern Limit Line (NLL). The 2010 Yeonpyeong Island bombardment demonstrated that North Korea has the capacity to generate a serious military confrontation in this area. To be sure, temporarily firing artillery shots would be considerably easier than occupying and defending the island against a counteroffensive by South Korean forces.
A hypothetical attempt to seize an island would require North Korea to halt South Korean reinforcement while establishing local military superiority. Undoubtedly, North Korean forces would face significant danger from the ROK’s navy, air force, and precision-guided strike capabilities. Irrespective of such inherent risks, a geographically restricted operation could create a political dilemma if North Korea threatened additional horizontal and vertical escalation.
Another weakness of Modern Warfare 4’s conventional invasion narrative concerns its greater focus on frontline combat over the infrastructure supporting military operations. Before initiating a limited attack, North Korea could temporarily degrade South Korea’s surveillance network, communication system, airfield operations, and logistical facilities. These attacks may include a combination of drone, missile, electronic warfare, and cyber operations. The objective is to complicate South Korea’s military countermeasures in the initial phase of the confrontation.
North Korea’s participation in the Russo-Ukrainian war makes these possibilities especially plausible. Its troops have been exposed to drone-saturated combat, electronic warfare, and artillery operations under near-constant battlefield surveillance. These experiences could encourage North Korea to incorporate inexpensive unmanned systems into its existing military capabilities. However, obtaining battlefield experience does not automatically provide the command-and-control capacity that is essential for conducting sophisticated multi-domain operations.
The most notable difference between the game’s conventional war scenario and military reality is related to North Korea’s nuclear arsenal. As illustrated in the Atlantic Council’s report, North Korea could use a low-yield nuclear weapon after embarking upon a limited territorial attack in order to deter a counterattack by US-ROK combined forces. North Korea’s September 2022 nuclear legislation outlines circumstances—which include threats against Pyongyang’s national leadership and nuclear command system—that allow the use of nuclear weapons. Thus, even a geographically restricted confrontation could entail notable escalation concerns.
While Seoul would have a strong incentive to restore control, Washington could place priority on preventing the confrontation from escalating into a nuclear exchange. North Korea could exploit the differences in allied risk assessments by threatening further escalation if South Korea expanded its counteroffensive. However, North Korea’s calculations remain uncertain since such coercion could consequently strengthen allied resolve.
Pyongyang might hope that political disagreements would delay allied decision-making long enough to consolidate the already occupied territory. These possibilities make allied coordination on escalation thresholds equally as important as conventional military superiority.
Simultaneous Regional Crisis and Allied Responses
The conventional invasion scenario assumes that American military capabilities could always be utilized on missions involving the Korean Peninsula. Yet, if a contingency breaks out in the Taiwan Strait, competing demands for fighter aircraft, intelligence assets, precision-guided munitions (PGM), and logistical support could surge. USFK could continue to conduct its operations. But reinforcements from outside could face delays or competing priorities. While Washington’s attention and resources are thinned out, North Korea could interpret the situation as an opportunity to conduct limited aggression.
Importantly, these constraints could change depending on the different stages of the conflict. During the early phases of the confrontation, the availability of surveillance assets and fighter aircraft could affect the allied forces’ situational awareness and response options. During subsequent operations, PGMs and missile interceptors could become more important. In a prolonged confrontation, the sustainability of logistical support and the availability of reinforcements could determine how effectively the allied forces could maintain military pressure.
Japan could play a pivotal role since US military installations situated within Japan support missions across Northeast Asia. This does not mean that China and North Korea would inevitably coordinate their military operations. Pyongyang could opportunistically exploit the regional crisis without officially participating in a coordinated offensive.
These possibilities illustrate the need to distinguish between deterring a full-fledged invasion and preventing North Korea from achieving limited political objectives. In this regard, the US-ROK joint exercises—or preferably the US-Japan-ROK trilateral exercises—should reflect scenarios concerning temporary territorial seizure, nuclear blackmail, and disagreements on proportionate military retaliation. In addition, Washington and Seoul should establish clear procedures to respond to military provocations without assuming that every confrontation would transmogrify into an all-out war. These preparations would reduce the possibility of political hesitation undermining otherwise superior military capabilities.
South Korea should also prioritize the resilience of military infrastructure supporting surveillance, communications, aerial operations, and sustainable logistical support. Trilateral cooperation involving Japan should factor in which US assets would be available if simultaneous contingencies occurred in the region. Instead of relying on military strength in an aggregated sense, special attention should be given to ammunition stockpiles, missile defense interceptors, and reinforcement schedules.
Although Modern Warfare 4 offers an interesting delineation of North Korea’s conventional invasion, its fundamental assumptions need to be reconsidered. North Korea may attempt to achieve its strategic goals without fully neutralizing South Korean forces by combining multidomain disruption, geographically restricted operations, and nuclear coercion. While the Russia-China-North Korea bloc is deepening its cooperation, the US, Japan, and South Korea should take necessary steps to prevent the other side from exploiting any existing fractures that could eventually compromise their war-fighting capabilities during a crisis.
