The Chinese and Russian navies strengthened their cooperation and capabilities in maritime operations through the Joint Sea-2014, which concluded on Sunday, according to a senior Chinese commander.

"The joint drill has completed its preplanned tasks and achieved our goals," Vice-Admiral Tian Zhong, deputy commander of the People's Liberation Army navy, told a news conference on Sunday afternoon.

"We blended all Chinese and Russian forces and divided them into three combat squadrons, enabling officers to enhance cooperation and to have more opportunities to know each other better," he said.