"The ROK Army is tough and mean (when it has to be) in the extreme."
I had a friend some years ago who served with some ROC guys in nam. He always said they were guys you didn't want to f**k around with.
'The ROK Army is tough and mean'
It seems that some people soldier because circumstances force them to it.
Other people do so because they love to bear arms. Some cultures are traditionally militaristic and will be so forever, it's in their national character.