San Francisco [US], December 21 (ANI): Chinese President Xi Jinping has warned his US counterpart Joe Biden that Beijing will reunify Taiwan with mainland China but that the timing has not yet been decided, NBC News reported. NBC News is the news division of the American broadcast television network NBC. Xi warned Biden during their recent summit in San Francisco, according to three current and former US officials. In a group meeting attended by a dozen American and Chinese officials, Xi told Biden that China’s preference is to take Taiwan peacefully, not by force, the officials said. The Chin…