BEIJING (AP) — China appears to be keeping its distance as Russia and North Korea move closer to each other with a new defense pact that could tilt the balance of power among the three authoritarian states. Experts say the Chinese leadership likely is fretting the potential loss of influence over North Korea and how that could increase instability on the Korean Peninsula. Beijing so far has not commented on the deal and only reiterated boilerplate statements that it seeks to uphold peace and stability on the Korean Peninsula and advance a political settlement of the North-South divide.