You think it too much. Military grade GPS, Satellite, Gyroscope all them well controlled by US Government. TW Army only can subscribe the service from US Gov "granted & selected services" only. The combat & fire-control system 100% US made & controlled by USA. If any bad intention by TW army ( keen to attack China Territory), the Signal cut down ASAP by USA, the fire-out cannon & missiles not able to reach the target at all.