File- In this March 30, 2014 file photo, a protester displays a banner supporting Taiwan during a massive protest against China in front of the Presidential Building in Taipei, Taiwan. Taiwan struggles with its identity as it retains its official name “Republic of China,” along with a constitution that defines its territory as encompassing all of mainland China. But as far as communist China is concerned, Taiwan is part of its territory, and insists that the two sides eventually reunite. (AP Photo/Wally Santana, File)