Key Takeaways:
- The author says Seoul should not copy the Iraq “safest possible” model for any Hormuz mission. The aim is a contribution Washington finds useful without making the deployment politically unsustainable or weakening deterrence against North Korea.
- Scarce assets such as the small P-8A fleet should stay tied to a “South Korea-first” readiness floor (missile warning, ASW, air defense, Combined Forces Command). If that floor slips, overseas rotations should shrink or stop.
- Preferred roles are maritime surveillance, logistics, minesweeping, intel, SAR, and medical support—not strikes on Iran—with a defined mand
South Korea is again confronting a familiar alliance problem: when Washington requests support in a conflict far away from the Korean Peninsula, how much military risk should Seoul accept?
As of early September, options discussed concerning the Strait of Hormuz included a P-8A Poseidon maritime patrol aircraft, a naval logistics support vessel, and an Explosive Ordnance Disposal (EOD) team. Although it seems unavoidable to compare it with South Korea’s troop dispatch to Iraq in the early 2000s, it is potentially misleading.
The lesson from Iraq is not that Seoul should simply designate the safest possible place to deploy forces. It is rather to make South Korea’s contribution sufficiently useful in the eyes of Washington while ensuring that an overseas mission neither becomes politically unsustainable nor weakens deterrence against North Korea.
Iraq Was a Political Compromise
During the Roh Moo-hyun administration, South Korea sent the Zaytun Division to Erbil, situated in Northern Iraq. At the height of its deployment, the troop size reached approximately 3,600, turning South Korea into one of the greatest contributors to the US-led coalition. Nonetheless, Seoul worked deliberately to reduce the level of its units’ exposure to direct combat. South Korean forces operated in relatively stable Northern Iraq and concentrated on reconstruction, engineering, humanitarian assistance, medical support, and security missions.
The arrangement allowed Seoul to demonstrate alliance cohesion while minimizing potential Korean casualties. However, the murder of South Korean civilian Kim Sun-il in 2004 illustrated how such a political equilibrium could be fragile. His death intensified protests and demands for withdrawal. The same risk exists in Hormuz. If a South Korean soldier perishes in a conflict portrayed in South Korea as a US-led war, public pressure for a withdrawal would rapidly increase.
Nevertheless, replicating the safest aspect of the Zaytun model could create additional problems. If South Korean forces operate under limited conditions such that their military value could be negligible at best, Washington might reach the conclusion that Seoul is aiming solely for political credit without fully assuming meaningful alliance burdens.
South Korea Cannot Treat Hormuz as a Stand-Alone Mission
The security environment surrounding the Korean Peninsula at the current juncture is substantially more demanding than it was during the Iraq deployment in 2003.
North Korea possesses more advanced nuclear and missile capabilities, while its participation in the Russo-Ukrainian war has exposed its forces to drone warfare, electronic warfare, artillery-drone integration, and rapid battlefield adaptation.
A Taiwan contingency would add another layer of pressure. Even if US Forces Korea (USFK) continuously centers its primary focus on peninsula defense, American aircraft, ships, intelligence assets, logistics networks, and ammunition could confront competing demands originating from other places in the Indo-Pacific. Russia’s deepening mil-to-mil relations with North Korea would further reduce Seoul’s margin of error.
The P-8A is a case in point. South Korea is currently operating only a small fleet—six in total—acquired primarily to strengthen maritime surveillance and anti-submarine warfare capabilities against the North Korean threat. Sending a single aircraft to the Middle East might seem negligible at first glance, but its protracted deployment would remove a significant share of a scarce capability from Northeast Asia.
Thus, Seoul should evaluate any contribution by how much readiness it can afford to lose, and not by how many assets could be sent to the region.
Establish a South Korea-First Readiness Baseline
Such calculations are particularly important since Seoul is simultaneously advancing with the transfer of wartime operational control (OPCON). South Korea currently wishes to demonstrate that it could assume greater responsibilities regarding wartime command. Washington, however, has its own reasons to be cautious when North Korea’s capabilities are improving and US forces face growing regional demands.
A carefully designed contribution to Hormuz could actually back—and not complicate—the logic of Seoul’s OPCON transfer. The message would be that greater South Korean command responsibility would not necessarily mean strategically distancing itself from the United States. A more capable South Korea could bear a greater burden on the Korean Peninsula and support selected US-led operations abroad at the same time.
Such signaling would also be observed by Beijing, Pyongyang, and Moscow. All three have incentives to test whether the disagreements between the United States and South Korea over OPCON transfer, joint exercises, and burden sharing would fracture alliance cohesion.
Prior to the deployment, therefore, Washington and Seoul should agree upon a ‘South Korea-first readiness baseline.’ Capabilities directly supporting missile warning, anti-submarine warfare, strategic intelligence, air and missile defense, and Combined Forces Command (CFC) should not be diverted elsewhere if such a decision practically weakens preparedness against North Korea.
If a P-8A is sent, Seoul should define a minimum number of mission-capable aircraft that must remain available for missions on the Korean Peninsula. If the baseline cannot be maintained due to maintenance, training, or increased North Korean activities, rotational deployment overseas should be either curtailed or suspended. Such a baseline will make the Hormuz mission conditional on actual peninsula readiness rather than on a political commitment.
Send What Washington Can Actually Use
South Korea should focus on maritime surveillance, logistics, minesweeping operations, intelligence sharing, search-and-rescue, and medical assistance rather than offensive strikes against Iran.
A P-8A could monitor shipping corridors, pursue suspicious maritime activities, and provide intelligence to coalition forces. A logistics-support ship could extend endurance by offering fuel, resupply, maintenance, and medical support. Preserving the Strait of Hormuz as open is not only directly connected with the freedom of navigation and the flow of international energy, but also allows Seoul to frame its role as protecting maritime trade while not participating in an offensive war against Iran.
Conversely, Washington should evaluate South Korea’s contribution by calculable outcomes, such as surveillance hours flown, vessels supported, shipping lanes monitored, mines detected or destroyed, and intelligence shared.
The South Korean government should assume that its personnel could get killed. The mission mandate should specify its geographical scope, duration, function, and conditions for extension. However, Seoul should avoid promising automatic withdrawal after casualties. Such policies would create explicit incentives for Iran and its proxies to target South Koreans in the hope of forcing Seoul out of the scene.
Instead, casualties should trigger a formal strategic review examining three questions: Is the mission still militarily beneficial? Is it still politically sustainable? And is it still compatible with peninsula preparedness? An identical review should be made when North Korea rapidly escalates tensions or a Taiwan contingency adds further pressure on US and ROK forces.
A better contribution to the Strait of Hormuz would be smaller, maritime-centered, rotational, and tied to a clear readiness threshold on the Korean Peninsula. The key task of a Middle Eastern deployment is not to shirk danger. It is to bear sufficient risk to make South Korea’s contribution credible while not creating new vulnerability on the Korean Peninsula.