Beijing may consider sending a peacekeeping force to Afghanistan if the security situation in the South Asian country poses a threat to the neighbouring Chinese province of Xinjiang after American troops pull out, analysts said. US President Joe Biden said on Wednesday that he would withdraw all remaining US troops – about 2,500 – from Afghanistan by September 11, the 20th anniversary of the terrorist attack in New York. The withdrawal may pose a threat to Afghanistan’s security and stability, which could spill over into Xinjiang and disrupt China’s counterterrorism efforts.