South Korea is trapped in a dangerous strategic trilemma, forced to balance its U.S. alliance, its Chinese economic partnership, and a hostile North Korea. This impossible balancing act was on full display during Chinese President Xi Jinping’s state visit, a trip that piled pressure on President Lee Jae Myung.
The first part of the trilemma is the U.S. alliance. Following a recent visit from U.S. President Trump, Lee had to represent U.S.-linked interests to Xi. This included raising the highly sensitive 2017 THAAD missile system dispute, which stems from the U.S. alliance but which China considers a major threat.
The second part is China, the economic giant. President Xi arrived promoting “mutual respect” and “friendly consultation,” but the subtext was clear: economic partnership. Chinese state media focused on the seven new economic agreements signed, including a currency swap, highlighting the leverage Beijing holds over the South Korean economy.
The third and most volatile part is North Korea. Lee attempted to use the Xi summit to address this, urging China to help restart dialogue. This move backfired immediately and publicly. Pyongyang issued a statement rejecting the idea as a “pipe dream,” showcasing Seoul’s lack of influence over its northern neighbor.
As if these external pressures weren’t enough, Lee also faces a trilemma at home. Hundreds of protesters rallied in Seoul against Chinese influence, demonstrating the public’s deep-seated anxieties. Lee, who has tried to quiet such dissent, was left to manage all three fronts at once, with no easy solutions in sight.
Seoul’s Trilemma: Balancing the U.S., China, and a Hostile North
