Chinese State Councilor Dai Bingguo left Beijing for a working visit to the United States on Wednesday, according to Chinese Foreign Ministry. 
Dai, at the invitation of the US government, will co-chair the sixth strategic dialogue with US Deputy Secretary of State John Negroponte during his tour. 
The fifth Sino-US strategic dialogue was held in China in January 2008. The two sides agreed to hold the sixth dialogue within this year in the United States. 
The China-US Strategic Dialogue was launched in August 2005 in accordance with the consensus of the two heads of state. 
(Xinhua News Agency December 11, 2008)