For more on the China-Russia drill, we're joined by Teng Jianqun, Director of the Center for Arms Control, at the China Institute of International Studies.

Q1: Anti-submarine and island landing operations highlight this year's drill in the South China Sea. Is there any strategic goal?

Q2: In recent years, China and Russia have conducted a series of such drills off the their eastern coasts.  How does this reflect on their relationship?