Russian President Vladimir Putin (left) and Chinese President Xi Jinping (right), during a family photo session at the Shanghai Cooperation (SCO) summit in Tianjin, China, Monday, Sept.1. Photo: AP.

Russian President Vladimir Putin (left) and Chinese President Xi Jinping (right), during a family photo session at the Shanghai Cooperation (SCO) summit in Tianjin, China, Monday, Sept.1. Photo: AP.