三藩之乱
For the next 19 years, he tried to provide sufficiently for the local inhabitants and reorganizing their military forces in Taiwan. He frequently exchanged ambassadors with the Kangxi Emperor from the mainland. Although he continued to fight for the cause his father died for, he had largely abandoned any pretense of restoring the Ming dynasty by the time he invaded Fujian in 1676. Zheng's forces land in Siming at the behest of Geng Jingzhong, who has joined the Revolt of the Three Feudatories, following the lead of Wu Sangui. He occupied key cities in the province for a year before losing them back to the Manchus by the end of 1677. Invading Fujian once more, he led a force of 30,000 men to capture Haicheng as well as taking the provincial commander prisoner.