Maybe HN should ban words matching "surpris" from Titles?

Even if you are clueless about the international arms trade - South Korea has maintained a huge military for the past 70-ish years, as part of their endless cold war with North Korea. And South Korea has been really big on manufacturing and exporting all sorts of stuff for the past half-ish-century. Why the hell wouldn't they be selling the military things that they are building anyway, at scale, to any and every non-enemy with money to spend?

Other countries with rising weapons businesses are Ukraine and Iran.

The best endorsement for a weapons manufacturer is winning a war against a tough opponent.

This trend has been obvious since at least the Poland deal. Korea gets much more return on its defense dollar manufacturing exportable weapons systems than relying on imports or domestic-only programs.

This article uses so many words to focus on the political reasons, but completely ignores the primary driver: Cost.

Korean weapons systems are 40-60% cheaper than their American counterparts.

The Korean K9 Thunder 155mm self-propelled howitzer costs $3.5 to $4 million per unit. For comparison, the American M109A7 Paladin costs around $8 million. The German PzH 2000 runs approximately $7 to $8 million.

The K239 Chunmoo Rocket Artillery (MLRS) system runs $2.0M/unit; M142 HIMARS runs $4.5M/unit. 155mm artillery shells are $2k/shell from Korea vs $3.5k/shell from the United States. Korean Cheongung II SAM interceptors cost ~$1.1M/unit, US Patriot missiles cost $4.0M/unit.

Buying South Korean weapons systems means you can procure twice as much at the same cost. It's a no brainer why Korea is winning military contracts.

[0] https://militarymachine.com/k9-thunder-howitzer-most-exporte...

South Korea's self-reliance on weapons came straight out of vietnam war, where they were initially sending soldiers with WW2 weapons and became frustrated with the fragile American rifle that were provided, President Park directly launched Korea's own DOD (Agency for Defense Development aka ADD) which has been successful at repurposing soviet and american designs at a time where both countries were unsupportive. The K2 rifle in particular follows the same philosophy of essentially taking the grunty but reliable/rugged simplicity and then adding very economical/cost effective capacity advancements. The collapse of soviet union directly contributed to South Korea's rocket program and ballistic missile design advancement which at the time was embarassing and behind north korea ( The original hyunmoo was a repurposed american nike missile meant for air defence) You will notice the cold start process of Hyunmoo series and Russian designs are identical. Instead of repaying debt Russia sent tanks T80Us for example in return for Korean cup ramen. Lots of learning going on and South Korea ha been exceptional in particular Germany's submarine program and their unwillingness to distribute/share tech lead to Koreans adapting and successfully competing for Canada's submarine program.

Of late the Iran war showed that South Korea's anti-air as well as Biho class armor vehicles engaged drones well in UAE leading them to "we'll send you all we have now and you can pay us later" have won major trust from the region

Unlike China and Russias own weaponry which have largely been proven as duds, Korean weapons are giving American manufacturers a run for their money and if Korea can pull off the middle east region, it would not only secure oil directly while bypassing US dollar settlement, it could establish a sort of oil-for-korean-weapons and perhaps even soldiers in the near future, I think that this is the particular threat that America sees from its own ally and there will likely be some efforts to curb or limit South Korea as this article I think is starting to set the tone for.