Russian President Vladimir Putin (2nd L) and Vietnamese Prime Minister Nguyen Tan Dung (2nd R) hold talks in Hanoi, capital of Vietnam, Nov. 12, 2013. (Xinhua/VNA)

Russian President Vladimir Putin (L) shakes hands with Vietnamese Prime Minister Nguyen Tan Dung in Hanoi, capital of Vietnam, Nov. 12, 2013. (Xinhua/VNA)

Russian President Vladimir Putin (L) meets with General Secretary of the Communist Party of Vietnam Nguyen Phu Trong in Hanoi, capital of Vietnam, Nov. 12, 2013. (Xinhua/VNA)