There has a been a pretty vibrant debate in South Korea over building an indigenous aircraft carrier. That debate has been especially resonant where I live – Busan – because it would probably be built here.
IMO, the best argument for a ROK carrier is China’s creeping, long-term effort to dominate the South China Sea. Oil from the Persian Gulf traverses the SCS on its way to East Asia’s democracies – Japan, South Korea, Taiwan. Chinese control of the SCS oil sea lane would allow the PLAN to embargo carbon imports for whatever bogus reason Beijing could think of.
We can be sure that Chinese bullying in the region will use this tool as soon as China consolidates control of the SCS and puts up enough bases to launch blockades. Indeed, I have long thought that this is the primary reason China wants to control the SCS so badly. It’s not clear that there are a lot of natural resources in the seabed there or that they can be cost-effectively extracted. And all the little islands and sandbars in the SCS aren’t valuable in themselves.
But this would require SK to start seriously thinking about 1) power projection southward, 2) contesting Chinese sea control inside the first island chain, and 3) cooperating with Japan which is also threatened by this and which has a larger navy. That would all be great but is a big ask for a country not used to thinking about foreign policy much beyond the peninsula. And that is my big concern: that the previous Moon administration really wanted to build this because Japan is building an aircraft carrier, and wants to park it next to Dokdo. That is the wrong reason to build one.
Here is the original, pre-edited version of my essay from the Japan Times:
South Korean has considered, in the last year, constructing a light aircraft carrier. This has provoked controversy. The decision to build it or not has swung back and forth. The South Korean navy very much wants it and has made a public push for it. The South Korean legislature, the National Assembly, ultimately decided to fund it last year. But the government of new President Yoon Seok Yeol is apparently re-considering.
South Korea the Land Power
Most countries in the world lean into either land or sea power, as dictated by their geography. Unsurprisingly, island states develop ‘blue water’ (i.e., ocean-going) navies. Japanese modernization, for example, lead to maritime power in the last century and half. Britain too had a large navy at its peak.
South Korea would appear to fit into this box. It is an island of sorts. It has just one land border, but that is tightly sealed. So strategically, South Korea is nearly an island.
But necessity has made South Korean a land power nonetheless. Its border with North Korea is the most militarized place on the planet. The North Korean army numbers over one million active-duty soldiers, with millions more in reserve. North Korea’s air and naval power are small in comparison. A second Korean war, like the first one, would mostly be fought on the ground. Continue reading