@gniksivart: China will most assuredly go to war with us in order to prevent a pro-U.S. government from being installed in Pyongyang. It may not be conventional, but they will spend money and lives to prevent a U.S. puppet nation on their doorstep. Think Iranian involvement in Iraq, which was mostly the funding, arming, and advising of proxy terror and insurgent groups. We will not be able to clear and hold North Korea, even if we tried.