Submarine Dispute Stalls Trump’s Defense Deal with South Korea

Negotiations between the United States and South Korea over a long-anticipated defense deal have hit a snag, as both sides struggle to finalize terms surrounding the deployment of U.S. nuclear-powered submarines in the region.

The proposed agreement — part of President Donald Trump’s broader Indo-Pacific security initiative — is aimed at bolstering deterrence against North Korea. However, officials familiar with the talks said Seoul and Washington remain divided over the scope of U.S. submarine visits and South Korea’s access to related technology.

“The submarine issue has become the most sensitive part of the negotiations,” a senior South Korean defense official said. “We are seeking more transparency and limited transfer of non-nuclear systems, but Washington is cautious.”

Trump has touted the deal as a “landmark step” toward strengthening U.S.–South Korea ties, but critics say the technical and political complexities could delay implementation well into next year.

Analysts believe the impasse underscores long-standing tensions between Washington’s security commitments and Seoul’s growing desire for strategic autonomy.

Meanwhile, North Korea’s recent missile launches have further heightened regional security concerns, increasing pressure on both allies to finalize an agreement soon.