Sorry, I got it mixed up with the US-Philippines Mutual Defence Treaty (as the Philippines are also involved in the conflict). Which, as I found while googling

Sorry, I got it mixed up with the US-Philippines Mutual Defence Treaty (as the Philippines are also involved in the conflict). Which, as I found while googling, has been ... umm ... cancelled by the US already? http://newsinfo.inquirer.net/14118/us-not-coming-to-ph-aid-vs-china http://newsinfo.inquirer.net/14118/us-not-coming-to-ph-aid-v... Same as for the Taiwan treaty I guess, the US would be insane to help the re-elected KMT government. I take it back, it's only Japan that would drag the US in.