In a way our troops in south korea and our involvement there limit what South Korea needs to do to defend themselves.
I think we should slowly withdraw and only keep one or two millitary bases there in case the NORKS make it past the border. I say unleash the South Koreans and let them deal with it.
I think we should do the same in germany and in europe. Part of the reason Socialism has spread like a virus in Europe is that with us there watching their back they didn’t need to spend money on defense so they could blow more money on their “welfare states”.