South Korea is on its FIFTH version of the country because the US continually coups it whenever the existing people aren't doing exactly what they want. It's called the Fifth Republic for a fucking reason. It is an occupied vassal state entirely subservient to the USA and has been ever since the US genocided one fifth of the population of Korea (all of Korea). Keep in mind that being on your FIFTH republic is remarkable when the southern dictatorship was only first formed in 1948.

The US military has also literally run korean children over with tanks, which is very funny given that this is fake propaganda levelled at another enemy of the US, but in the case of america it's actually fucking true.