WASHINGTON >> The Trump administration and South Korean officials will meet today to begin formally renegotiating a free-trade pact that has served as a source of conflict between the two allies. The meeting comes at a moment of heightened tension in the Korean Peninsula and unease in the broader region.

President Donald Trump has called the 6-year-old agreement a “horrible deal” for the United States and pledged to rework it. Over a series of meetings in the coming months, U.S. negotiators hope to further open Korean markets to U.S. cars and agricultural products and smooth irritants in the trading relationship.

But clashes over trading terms could risk dividing the long-standing allies at a critical time, as North Korea seeks to drive a wedge between South Korea and Trump, analysts say. North Korea restored a cross-border telephone hotline with its southern neighbor Wednesday, just one day after the U.S. president said he has a “much bigger” nuclear button than the one North Korean leader, Kim Jong Un, boasted of having on his desk.

“The reality is, it’s a fraught moment between the U.S. and South Korea in terms of their alliance,” said Sue Mi Terry, a senior fellow at the Center for Strategic and International Studies. Renegotiating the deal at this juncture “is going to widen the gap between Seoul and Washington,” she said.

The Trump administration’s approach to trade has caused consternation in the broader Pacific region as well at a time of geopolitical unease.

The White Hose now emphasizes trade deals with specific countries rather than broader economic alliances. The approach counters efforts made by the Obama administration, which sought to tie countries on both sides of the Pacific Ocean together under the Trans-Pacific Partnership. It also comes as China moves to piece together a sphere of influence through regional trade agreements and infrastructure projects.

Since withdrawing backing for the TPP, the Trump administration has sought trade concessions from Japan. But Japan has focused on a version of the TPP without the United States and has expressed an unwillingness to settle for a smaller trade deal.

With South Korea, the White House’s overarching goal for renegotiating the trade pact is to reduce the U.S. trade deficit, which was $17 billion in 2016. But analysts view such a goal with skepticism, saying America’s tendency to import more than it exports is linked to larger economic factors, like saving and spending rates, not the terms of trade agreements.

Each side is likely to look to the other Friday to articulate their goals for the renegotiation, said Wendy Cutler, the former chief U.S. negotiator for the deal. The United States is likely to focus on areas of the agreement that it believes have not met its expectations — including trade in automobiles and potentially financial services and procedures related to importing goods, Cutler said.

She noted that the Trump administration had not notified Congress of its intention to renegotiate the agreement — something that is required before making substantial changes. That may suggest that the United States is not seeking to significantly alter the terms of the deal or that, although it is seeking changes from South Korea, it is not willing to make big concessions itself.

The United States Korea Free Trade Agreement, America’s largest trade pact after the North American Free Trade Agreement, was negotiated during the George W. Bush administration and signed by both countries in 2007. In 2008, it set off enormous protests from Koreans over concerns about the safety of imported goods, such as beef. And it was not ratified by Congress until 2011, after President Barack Obama reworked the pact.

The agreement went into effect in March 2012, cutting almost all tariffs and many other trade barriers between the countries. The deal opened South Korea, now the United States’ seventh-largest export market for goods, to imports of U.S. agriculture, services and investment, and the U.S. market to Korean cars and other manufactured goods like washing machines.

In 2007, trade officials estimated that lower barriers to trade under the agreement would increase annual exports of U.S. goods by up to $11 billion — a claim that Obama repeated.

But, as the Trump administration has argued, that did not happen.

“Since KORUS went into effect, our trade deficit in goods with Korea has doubled from $13.2 billion to $27.6 billion, while U.S. goods exports have actually gone down,” Robert Lighthizer, the lead trade official, said in a statement in July. “This is quite different from what the previous administration sold to the American people when it urged approval of this agreement. We can and must do better.”

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