The Taliban have handed over the last of the South Korean hostages they were holding to the International Committee of the Red Cross. In exchange, South Korea has confirmed that it would withdraw its 200 soldiers from Afghanistan, as it had already been planning to do, and also that it would prevent its citizens from travelling to Afghanistan for missionary activity or any other purpose (BBC).
I wonder how the South Korean government is supposed to enforce its travel ban to Afghanistan. Can't any South Korean who wants to go to Afghanistan go to a third country with an Afghan embassy, obtain a visa, and go there?
I guess one way is for it to make a deal with the Afghan government that would guarantee a blanket policy of denying Afghan visas to South Korean citizens. But then would the Afghan government be willing to make such a concession to the Taliban?