Sept. 2 (UPI) -- Russian President Vladimir Putin on Tuesday praised "unprecedented" Sino-Russian cooperation on a prominent visit to Beijing for a massive military parade marking the 80th anniversary of the end of World War II. Meeting with Chinese President Xi Jinping for "high-level" talks on the eve of the anniversary of the Imperial Japanese Army's surrender to China's nationalist government, Putin hailed what he said was China's willingness to work with Russia to establish a fairer