sentences:  He began searching for a suitable location as his base of operations, and soon a Chinese man named He Bin (), who was working for the Dutch East India Company in Formosa (Taiwan), fled to Koxinga's base in Xiamen and provided him with a map of Taiwan.On 23 March 1661, Koxinga's fleet set sail from Kinmen (Quemoy) with hundreds of junks of various sizes, with roughly 25,000 soldiers and sailors aboard.They arrived at Penghu the next day.