Always remain leery of the label expert, it is over used by the media to increase the impact of their stories. ISIS declared war on China in 2014, if not sooner, when published their map of the Caliphate that included western China. In 2009 al Qadea published a video declaring war on China, and both al Qaeda and ISIS made open threats against China last year.

This isn't just based on the perception that China is abusing its Uighurs, but historical grievances over China taking over that part of the Muslim world. If China supports Assad and Iran in Syria the terrorist threat to China will further increase.