Russian President Vladimir Putin arrives in China on Tuesday for joint naval exercises and a meeting with President Xi Jinping as both seek to build ties in the face of Western criticism and territorial disputes.
Putin is visiting the country for the first time since Xi became head of state last year and the trip could see a huge and long-awaited natural gas deal finally signed.
Russia´s relations with the United States and European Union have plunged to a post-Cold War low in recent months over its seizure of Crimea and Western accusations Moscow is fomenting unrest in the east of Ukraine.
At the same time Beijing is bickering with neighbours over maritime territorial disputes, including Vietnam, Japan and the Philippines.