Why South Korea Has Little Room to Send Troops to Hormuz

Trump’s Public Pressure

Seoul’s military posture in the Middle East is currently delicate. The complex internal and global context hinders troop deployment, despite past precedents of supporting American operations. U. S. President Donald Trump recently voiced dissatisfaction with Seoul’s refusal to align with Washington in the war against Iran. In a Truth Social post last month, the White House leader noted he asked the South Korean president if he wanted to participate in denuclearizing the Islamic Republic of Iran. He received a negative answer. This public statement followed Trump’s open request for South Korean involvement since March. In his latest intervention, he linked diplomatic consequences to this decision. He announced a reduction in annual joint military exercises between the two nations. He also expressed an unusual affinity with North Korean leader Kim Jong Un.

Government Options and Limits

Washington continues to pressure the South Korean government. Officials are analyzing various military and non-military options to manage the situation in the Strait of Hormuz. A team of government inspectors was even sent to the United Arab Emirates. They evaluated security and operational conditions for a potential force deployment. Nevertheless, President Lee Jae-myung drew a clear line regarding military engagement. During a press conference on September 18, Lee specified that no troop deployment would involve or directly intervene in the armed conflict. He added that South Korea must implement minimal measures to protect commercial vessels. It must also safeguard crude oil transport routes and citizen safety. This approach aligns with practices of other nations.

History offers a relevant contrast with the 2003 situation. That year, Seoul announced support for the Iraq War, sending engineering and environmental units. At the U. S. request and after National Assembly approval, then-President Roh Moo-hyun sent additional troops. This move partially aimed to consolidate the alliance with Washington. Seoul sought American cooperation on the North Korean nuclear issue at the time. Despite strong internal objections, approximately 4,000 South Korean soldiers were deployed to Iraq between 2003 and 2008. Their missions included security, reconstruction, medical support, and other non-combat tasks.

The 2003 Precedent

Currently, political dynamics have fundamentally changed. Seoul again needs Trump to play the role of „peacemaker” in resuming talks with Pyongyang. It also needs him to address the northern neighbor’s nuclear program. However, President Lee has much less maneuvering room than Roh did in 2003. He cannot easily use troop deployment as a tool to strengthen the partnership with Washington. Both the international and domestic environments make such a move difficult for the current head of state.

Shifting Political Dynamics

A decisive factor is the legal framework. Unlike the Iraq War, the current confrontation with Iran relies on a less developed legal basis. Before the 2003 invasion, the U. S. Congress adopted Joint Resolution 114. It authorized President George W. Bush to use military force against Iraq in 2002. The UN Security Council then adopted Resolution 1441. It offered Saddam Hussein’s government a „last chance” to comply with disarmament obligations. The authority of this resolution to permit force remains controversial. After the Iraqi regime collapsed, the Security Council approved Resolutions 1511 and 1546 to support political transition. In this broad context, a „coalition of the willing” formed by 49 countries led by the U. S. supported the war through varied contributions.

Today, neither the American Congress nor the UN Security Council has explicitly authorized force against Iran. Moreover, except for Israel, all other U. S. allies have avoided direct participation in the war. NATO officially refused any collective military action under Article 5. The United Kingdom and France are preparing to lead an independent, strictly defensive multinational military mission. This mission aims to ensure freedom of navigation through the Strait of Hormuz.

Legal Frameworks and Duration

Differences in duration and intensity are also significant. During the Iraq War, it took approximately three weeks to effectively remove Saddam Hussein’s government. In contrast, almost seven months after Israeli-American strikes began, the Iranian government and the Islamic Revolutionary Guard Corps remain intact. For Seoul, this means sending troops would generate higher diplomatic costs with Tehran. It also increases security risks. To ensure Seoul understands this reality, Iranian Foreign Ministry spokesperson Esmaeil Baghaei took the unusual step of publishing a warning in Korean on platform X.