Sarah Wu and Yew Lun Tian, Reuters Taiwanese are rushing to buy patches being worn by their air force pilots that depict a Formosan black bear punching Winnie the Pooh – representing China's President Xi Jinping – as a defiant symbol of the island's resistance to Chinese war games. China began three days of military drills around Taiwan on Saturday, a day after the island's president, Tsai Ing-wen, returned from a brief visit to the United States, where she met U.S. House Speaker Kevin McCarthy despite Beijing's warnings. Chinese censors have long targeted representations of Winnie the Pooh – created…