China has signed border cooperation agreements with seven neighboring countries, and established mechanisms with 12 countries for border defense talks and meetings. The border and coastal defense forces of the PLA promote friendly cooperation in joint patrols, guard duties and joint control-management drills with their counterparts of Russia, Kazakhstan, Mongolia and Vietnam, respectively. They also organize annual mutual inspections to supervise and verify the implementation of confidence-building measures in border areas with Kazakhstan, Kyrgyzstan, Russia and Tajikistan.