 Complete the following phrase:  On 10 February 1662 he was forced to surrender Fort Zeelandia after a nine-month siege from a large Chinese force of 25,000 men and 1,000 ships under Koxinga. Coyett said that Chinese were little better than poor specimens of very effeminate men, when he believed that there was no plan to invade Taiwan. The Dutch then changed their tune to Formosa is lost once the invasion was underway. With his army decisively crushed by the Chinese under Koxinga, Coyett left Taiwan after the 