Their leaders have been biting it left and right for years already. Until there is a ground campaign headed by Russia and/or the US, nothing meaningful will happen.
Didnt america intervene in South Korea? I've lived in Seoul, I would say it turned out pretty great. Although a lot of it is due to how hard working Koreans are.
Define modern. Afghanistan and Iraq asked for help with ISIS a few years ago. What about Kuwait before then? The Mujahideen? South Vietnam? North Vietnam before them. Plenty of nations have asked for help in the last few decades.
Now America will never invest in foreign affairs again
Ever