J.D. Vance Review & Guide: Everything You Need to Know About the U.S. Vice President — From How to Use Him to What People Are Saying

On April 8, phones were ringing off the hook inside Washington's diplomatic circles. Word had leaked that U.S. Vice President J.D. Vance would be making back-to-back visits to South Korea and Japan. The White House hasn't made it official yet, but Korea's foreign policy and business communities are already buzzing. Some think he's coming to personally deliver a "steel tariff bomb," while others believe he's looking for a breakthrough on North Korea. One thing's for sure: right now, you can't talk about the U.S.-Korea alliance without talking about this guy.

J.D. Vance Review: From "Hillbilly" to Vice President — Did His Transformation Work?

Search for "J.D. Vance review," and you'll find a striking split between conservative and liberal camps. The man who gave voice to the struggles of Rust Belt white workers in his 2016 bestseller *Hillbilly Elegy* was once called an "anti-Trump conservative." But in just a few years, he made a complete U-turn, signed on as Trump's running mate, and ended up clinching the vice presidency.

A Republican insider I met in Washington told me, "Vance knows the economic pain and addiction crisis of Ohio's factory towns better than anyone, because he lived it. But at the same time, he's also the poster child for cutthroat, transactional diplomacy." As a senator, he didn't hesitate to break with "strategic ambiguity" — making a controversial trip to Taiwan, for example. For Korea, he's like a dealer who shuffles security and economic issues into the same deck of cards.

J.D. Vance Guide: 3 Key Points Korea Must Know

If you want a "J.D. Vance guide," start by understanding his core agenda. I've tracked his public speeches and hearing testimonies over the last six months, and they boil down to three main pillars:

• Higher Host Nation Support: Under the banner of "burden-sharing," he argues for hiking the cost of stationing U.S. troops in Korea by more than 50% from current levels. He's already pushed the same logic on NATO members.
• Reshaping the Semiconductor & Battery Supply Chain: "America First" trumps "green" every time. He pressures Korean companies to build plants in the U.S., while attaching "excess profit sharing" clauses to subsidy deals.
• Joining the Tech Blockade on China: He calls it "de-risking" instead of "decoupling," but the message is tougher. He wants to bring even high-bandwidth memory (HBM) exports from Korea to China under control.

These three points are the essence of his foreign policy philosophy: "practical conservatism." He values deals over idealism, transactions over alliances. So it's no surprise that "how to use J.D. Vance" has become the hottest topic among traditional diplomats.

How to Use J.D. Vance: Korea Doesn't Have Much Time

So how do you actually pull off "how to use J.D. Vance" in the real world? A source well-versed in international politics advised, "Meeting with Vance isn't about showing up with a thick briefing book." What he wants is the executive summary — better yet, a single page with clear numbers and risks.

Big tech firms have already overhauled their lobbying strategies. They're feeding reports to Vance's inner circle that simulate job creation in Ohio. The Korean government should do the same. Instead of offering to "pay more for defense," you pitch a package where Korean defense firms invest in U.S. shipyards to create American jobs. That's the kind of proposal that gets traction.

Last week, I had a chance to talk with a former Vance staffer at a brewery in Washington, D.C. He told me, "Appealing to Vance's emotions won't work. The only question that matters is: 'How does this deal benefit U.S. taxpayers?'" In the end, the key to "how to use J.D. Vance" comes down to quantified benefits — and treating him like a true dealmaking partner.

With the Vice President's arrival in Seoul imminent, the National Assembly's Foreign Affairs and Unification Committee has already scheduled an urgent session. Whether we follow the "guide" at the upcoming negotiating table or end up writing a new "review" is anyone's guess. But one thing is clear: it's pointless to discuss this year's U.S.-Korea relationship without factoring in J.D. Vance.