Ruan Zongze , a senior researcher at the China Institute of International Studies , agreed : `` What concerns China most is possible regime change and foreign military intervention , '' he said . China joined Russia in using its veto to block a U.N. Security Council draft resolution on Syria . China 's use of veto marks a significant change in Russia 's diplomatic relations , local media says . Some analysts say the move shows Beijing 's fear that political unrest will spread to Russia .
China joined Russia in using its veto to block a U.N. Security Council draft resolution on Syria . China 's use of veto marks a significant change in Russia 's diplomatic relations , local media says . Some analysts say the move shows Beijing 's fear that political unrest will spread to Russia .