South Korea is in active and ongoing consultation with the United States over their combined military exercises, National Security Advisor Wi Sung-lac said on Tuesday, 18 August, as Seoul works to manage the fallout from US President Donald Trump's order to substantially scale back joint drills. The statement comes at a delicate moment for the alliance, with Seoul's long-standing plan to reclaim wartime operational control (OPCON) of its troops now facing fresh uncertainty.

What Wi Sung-lac Said

'Based on the strong South Korea-US alliance, our government has been continuing coordination with the US side on combined exercises and drills between South Korea and the US,' Wi told reporters. He added that the two countries will 'continue such coordination in the future.' The national security advisor also signalled that Seoul is accelerating efforts to independently strengthen its own defence capabilities.

The OPCON Question

Trump's instruction to reduce the scale of joint exercises has triggered concern in Seoul that the move could hinder formal assessments of the South Korean military's operational readiness — assessments that are a prerequisite for transferring wartime OPCON from US to South Korean command. At a Cabinet meeting on the same day, President Lee Jae Myung reaffirmed his commitment to completing the OPCON transfer within his term, which runs until 2030. The OPCON transition has been a recurring agenda item for successive South Korean governments and has been delayed multiple times since it was first agreed upon.

Trump's Outreach to North Korea — and the Iran Question

Trump's exercise reduction is widely read as a diplomatic signal to Pyongyang, echoing a similar move during his first term when he suspended drills following the 2018 Singapore summit with North Korean leader Kim Jong-un. In a recent social media post, Trump shared a photograph of his 2019 meeting with Kim at the inter-Korean border village of Panmunjom, noting that the two 'get along great' — a signal that Washington may be laying groundwork for renewed engagement with the North.

Separately, Trump also disclosed in a social media post that he had asked President Lee whether Seoul would join efforts to denuclearise Iran, and was told, 'No thanks.' Addressing the remark, Wi said South Korea has been actively participating in international discussions on freedom of navigation in the Strait of Hormuz and global non-proliferation efforts from the outset, and is reviewing options for 'practical contributions' consistent with its defence posture on the Korean Peninsula and domestic legal requirements.

Seoul's Stake in Denuclearisation

Wi stressed that South Korea has a 'keener interest' than most in Iran's denuclearisation, drawing on the country's own experience navigating North Korea's nuclear defiance of the Nuclear Non-Proliferation Treaty (NPT). The parallel, he suggested, gives Seoul a unique perspective in multilateral non-proliferation frameworks.

What Comes Next

Wi expressed hope that the visible warmth between Trump and Kim — amplified by Trump's recent social media posts — would translate into substantive dialogue and a resumption of talks aimed at stability on the Korean Peninsula. Whether the exercise scale-back accelerates that diplomatic track or merely weakens Seoul's deterrence posture without a corresponding concession from Pyongyang remains the central question for the alliance going forward.