Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Taiwan Should Prepare Against Possible Chinese Invasion, White House Official Says VOA News Taiwan should prepare to deter a Chinese invasion, White House national security adviser Robert O'Brien said Friday. "I think Taiwan needs to start looking at some asymmetric and anti-access area denial strategies and so on and really fortify itself in a manner that would deter the Chinese from any sort of amphibious invasion or even a gray zone operation against them," O'Brien said at an Aspen Institute event. A gray zone operation, he added, might include isolating the island economically. The term refers to coercive and provocative actions short of the use of military force. Some analysts say China could move against Taiwan should the U.S. presidential election result in political chaos, Reuters reported. China has maintained that Taiwan is part of China and that it should be reunited with the mainland, even by force. .