Which country downgraded Taiwan from Country to a Place since year 1979 until today? Which country upholds "One China" policy against Taiwan to follow "a joint communique on Aug. 17, 1982, better known as the “817 Communique.”? Which country curbs the "Honeywell/ITEC F125-GA-100 turbofan" performance to cause IDF=I Do Not Fly > AKA Airbase defender? Which country downgrades and defines the "Taipei economic and cultural representative office" not entitled to be "Taiwan”?