The recent tensions between China and South Korea have led some analysts to believe that China might be losing South Korea as a reliable partner or even a potential ally. Indeed, since South Korea decided to deploy the advanced Terminal High Altitude Area Defense (THAAD) missile defense system because of North Korea’s nuclear threat and U.S. pressure, China-South Korea relations have gone very cold in multiple ways. While it is understandable that South Korea wants more security assurance when faced with a increasingly powerful North Korean threat, China believes that the THAAD decision actually also hurts its national security. Mutual distrust between China and South Korea prevented effective communication of real intentions,leading to the current bout of cold relations between the two. Continue reading.