beijing china reiterate monday opposition deployment sophisticate u.s. anti-missile system south korea foreign ministry spokesman lu kang voice china opposition terminal high altitude area defense thaad system regular brief beijing also urge party work together maintain peace stability region south korean act president hwang kyo-ahn visit u.s. vice president mike pence monday reaffirm plan go ahead deployment system china say system powerful radar threat security unite state south korea say aim defense north korean missiles china reiterate opposition south korea 's thaad anti-missile system