The tension on the Korean Peninsula can be felt throughout the entire Pacific Rim right now. North Korea, a dictatorship with a shaky grasp on its populace, has nuclear weapons and is launching non-nuclear missiles over Japan and threatening South Korea and the United States. To make matters worse, the only state in the region that Pyongyang deems worthy of dialogue, China, refuses to engage in much multilateral work to defuse the situation.

If I were South Korea and China I would have an advanced missile shield system right on the border of North Korea, and if I were Japan I would have an advanced missile shield system spread all along my massive coastline. However, China is engaging in trade sanctions against South Korea for trying to build a missile shield along it’s border with North Korea, ostensibly because such a missile shield would threaten Beijing’s territorial integrity. This is a huge strategic mistake on China’s part. North Korea is ruled by the son of a brutal dictator who is in the midst of remaking the People’s Republic in his image. Pyongyang is launching missiles over wealthy democracies and threatening perceived enemies with nuclear annihilation. China is ignoring all of this, and undertaking policies designed to underwhelm multilateral efforts at containing North Korea because Beijing wants North Korea to serve 3 purposes: 1) a useful buffer state (but read this), 2) a hostile reminder that it considers Taiwan as part of China, and 3) as a good bargaining chip when dealing with the United States in the region.

Given that the United States is not geographically a part of East Asia, and given that Washington figures prominently in not one, not two, but all three major reasons why China refuses to engage robustly in more multilateral actions against such a destructive neighbor, we must ask ourselves: Why is the United States still in South Korea? The answer is that Koreans want them there.

Check out the latest results of a Pew Survey asking people what they think about the United States:

75% of South Koreans have a favorable or somewhat favorable view of the US even after the election of Donald Trump. That’s higher than the other baseball-friendly countries like Italy (61%) and Japan (57%), and much higher than next-door neighbor Mexico (30%) and longtime NATO partner Germany (35%).

China is wrong to believe that an American withdrawal would suddenly make North Korea a breezy member of the international community of states. Kim Jong Un’s regime depends on foreign enemies to survive. James Madison put it best:

The means of defense against foreign danger have been always the instruments of tyranny at home. Among the Romans it was a standing maxim to excite a war whenever a revolt was apprehended. Throughout all Europe, the armies kept up under the pretext of defending have enslaved the people.

North Korea would bully Seoul and Tokyo and cajole Beijing even moreso because Washington would not be there to bear the burden of Liberal Hegemonic Boogieman.

But I’m not a Chinese citizen and this is a post about a more liberal world, so I’d like to switch gears and focus on something that all libertarians are secretly obsessed with: money.

What kind of deal is the US getting by having troops stationed along the 38th parallel? I know the US is a target of a dictator’s nuclear arsenal because of troops along the 38th, and I know the US has to expend considerable resources on the Korean Peninsula to protect Seoul, so costs are understood, but what about benefits? What about payment? What does US get in return for protecting South Korea?

Trade – a big aspect of libertarian foreign policy – is not that big of a deal for either country: the United States makes up about 14% of South Korea’s exports, and South Korea makes up nearly 3% of the United States’ exports. This means that China, for example, is a larger, more important trading partner to both countries than either is to each other.

One of the benefits I’ve found is South Korea’s participation in multilateral military actions undertaken under the umbrella of US military leadership. South Korea has provided troops for dozens of current UN missions in sub-Saharan Africa and post-British Asia, and also participated in the US-led invasions and occupations of Afghanistan and Iraq (Seoul’s troops left Iraq in 2008 and Afghanistan in 2014). I also learned that South Korea deployed 325,000 soldiers to South Vietnam from 1964-1973, losing roughly 5,100 soldiers and welcoming home another 11,000 wounded soldiers.

Seoul’s participation in Vietnam was a shocking discovery for me. It forced me to reassess America’s relationship with South Korea. The status quo is actually a decent trade-off. The status quo is cooperative, not coercive. The status quo isn’t so bad from a libertarian standpoint: There is a trade-off with mutually beneficial exchange involved, there is a cooperative rather than coercive relationship between both sides, and tens of millions of people are freer than they otherwise would be because of it.

We can still make the alliance marginally better, though. We can still take small steps to a much better world. Consider federation between the two countries.

On the face of it, such an event is ludicrously radical and completely anathema to liberty and cooperation. I would have had the same reaction just a couple of years ago, but two books have fundamentally changed my mind about this: Daniel Deudney’s Bounding Power: Republican Security Theory from the Polis to the Global Village and David Hendrickson’s Peace Pact: The Lost World of the American Founding. Both scholars are American political scientists and, as far as I can tell, card-carrying Democrats.

Deudney’s book uses theory and history to show that, among other things, republican security theory is, and always has been, from antiquity to the present day, the most important question that scholars of international relations have had to grapple with. For centuries, republics started out with the best of intentions, the best of circumstances, and always managed to decay into despotism or succumb to conquest by neighboring despots. The United States, Deudney goes on,  managed to get out of this trap through federal union and, because of its peculiar geographic situation, a full-fledged republican security bargain was able to come to full fruition.

Deudney bases this part of his argument on Hendrickson’s little-known but immensely persuasive book. Hendrickson argues that the newly independent 13 states and their eventual federal union should best be viewed in an international relations framework. In order to protect themselves not only from powerful empires but more importantly from each other, the 13 states entered into a federal union that held them responsible for a limited number of shared responsibilities (such as international security and ensuring republican government in their domestic realms) and left plenty of space for each of them to exercise policymaking as they saw fit. In order to avoid a race to the bottom – where the 13 states formed security blocs between themselves and used Spain, France, and the UK to undermine their rivals – the 13 states built, piece-by-piece, a cooperative international system and called it a federation.

With America’s domestic liberties under increasing assault, largely because the current situation places so much emphasis on certain checks and balances over others, adding additional “states” in the form of South Korea’s provinces would breathe new life into all of the institutions necessary for both security and republican domestic governance.

The inevitable Korean bloc

The biggest fear that such a federation would bring about is the fear of a Korean bloc, or the disintegration of the precarious balance of power between the two parties in the US. Although partisans on both sides no doubt loathe that their side is even with the other in terms of influence and numbers, most Americans are very happy with the two party status quo (if they weren’t happy there would no longer be a two party status quo).

Admitting 5 to 7 new “states,” former Korean provinces, makes it seem like this delicate two party balance would be quickly destroyed with the advent of a Korean bloc which has no interest in traditional American politics. I assure you there would be no Korean bloc. Look at the most recent Korean elections:

There is a Left-Right divide focused on policy and to a lesser extent ideology rather than an ethnic one, just like here in the States.

The Korean Left would line up nicely with Democrats (it even has an anti-American streak that isn’t anti-American at all, only anti-GOP, just like the Democrats!). The conservative wing of South Korea might form a Korean bloc but it would be ineffective in the House and Senate because of its small number.

Libertarians are often dissatisfied with the status quo, even though they’re often the first to point out that life in Western states continues to get better and better. The status quo relationship between South Korea and the United States is great. But it could always be a little bit better.