3) Taiwan issue as an obstacle Chinas persistence on the principle of "one Chinaas basic requirement for the normalization (U.S. breaking up relations with Taiwan, abandoning its treaty with Taiwan, and withdrawing its troops from Taiwan) 4 )China and the U.S. normalized their relations in January, 1979 5)U.S. Congress passed Taiwan Relations Act in March 19793) Taiwan issue as an obstacle. China’s persistence on the principle of “one China ” as basic requirement for the normalization. (U.S. breaking up relations with Taiwan, abandoning its treaty with Taiwan, and withdrawing its troops from Taiwan). 4.) China and the U.S. normalized their relations in January, 1979. 5) U.S. Congress passed Taiwan Relations Act in March 1979