 Complete the following phrase:  Zheng Zhilong defects to the Qing dynasty after seeing that he has no future in Southern Ming. Despite his fathers betrayal, Zheng Chenggong remains loyal to the Longwu Emperor and continues to resist the Qing invaders even after the fall of Southern Ming. He plans to retreat to Taiwan and establish a new base of operations there in preparation for retaking Mainland China from the Qing dynasty. In 1661, Zheng Chenggongs fleet sets sail from Xiamen to attack the Dutch on Taiwan. Nine months later, he defeats the Dutch at the 