BEIJING, Oct 30 (Reuters) - Chinese and Russian military chiefs targeted the United States for criticism at a security forum in Beijing on Monday, even as China's second-most-senior military commander vowed to boost defence ties with Washington. Russia's Defence Minister Sergei Shoigu warned the West that its involvement in the Ukraine war created grave danger. China's defence minister delivered the keynote speech in previous years. China and the U.S. have had no high-level military-to-military communications since the Washington-sanctioned former Chinese defence minister, Li Shangfu, was appointed in March. It is not yet known whether the U.S. team will meet separately with Chinese military officials.

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Persons: Sergei Shoigu, Shoigu, Zhang Youxia, Xi Jinping, Zhang, Li Shangfu, Li, Cynthia Xanthi, Joe Biden, Wang Yi, Biden, Yew Lun Tian, Lidia Kelly, Laurie Chen, Greg Torode, Gerry Doyle, Tom Hogue Organizations: Washington, Beijing Xiangshan, Russia's, TASS, China's, Military Commission, Communist, U.S, Reuters, Defense, U.S ., Thomson Locations: BEIJING, United States, Beijing, Ukraine, Russia, China, Taiwan, South China, Washington, U.S, Cynthia Xanthi Carras, Singapore, Laos, Mongolia, Belarus, East Timor, Myanmar, Sydney