Canada

That little panhandle is what created the Uighur problem for China. The Americans dropped their most powerful bomb on the Taliban terrorist camps in the panhandle, who wanted to create a Uighur ISIS homeland in the panhandle independent of Afghanistan. So the Uighur ISIS terrorists fled to China, and the rest is history. The terrorists tried to make the Chinese side their own homeland, and used a ruthless terror campaign of bombings and killings to terrorize the local population, so they could make it an ISIS state. Unfortunately for them, the Chinese government had different ideas about them taking over the area. Mind you, Western news tells the story slightly differently, although the American bombing of innocent civilians in the panhandle is well documented.