Photo shows the Chinese Navy fleet taking part in the China-Russia Joint Sea-2015 (II) drill.

The drills, codenamed Joint Sea-2015 (II), are being held on Aug. 20-28 in the Peter the Great Gulf, waters off the Clerk Cape, and the Sea of Japan.

Themed "Joint maritime transportation protection and joint landing missions", the drill focuses on joint air defense, joint anti-submarine and anti-ship missions, joint defense, joint landing missions and so on.

During the exercises, the two navies will also open their warships for each other to visit and hold various sport and cultural activities as well.

This is the second China-Russia naval exercise this year.

The last China-Russia naval drills, Joint Sea-2015 (I), were held in the Mediterranean Sea in May.