five Dutch ships were sent to Liu-ao and the mission ended in failure for the Dutch, with a number of Dutch sailors taken prisoner and one of their ships lost. In response to the Dutch using captured Chinese for forced labor and strengthening their garrison in the Pescadores with five more ships in addition to the six already there, the new governor of Fujian, Nan Juyi (Nan Chü-i), was permitted by China to begin preparations to attack the Dutch forces in July 1623. A Dutch raid was defeated by the Chinese at Amoy in October 1623, with the Chinese taking the Dutch commander Christian Francs prisoner and burning one of the four Dutch ships. Yu Zigao began an offensive in February 1624 with warships and troops against the Dutch in the Pescadores with the intent of expelling them. The Chinese offensive reached the Dutch fort on 30 July 1624, with 5,000 Chinese troops (or 10,000) and 40-50 warships under Yu and General Wang Mengxiong surrounding the fort commanded by Marten Sonck, and the Dutch were forced to sue for peace on 3 August and folded before the Chinese demands, withdrawing from the Pescadores to Formosa. The Dutch admitted that their attempt at military force to coerce China into trading with them had failed with their defeat in the Pescadores. At the Chinese victory celebrations over the "red-haired barbarians," as the Dutch were called by the Chinese, Nan Juyi (Nan Chü-yi) paraded twelve Dutch soldiers who were captured before the Emperor in Beijing. The Dutch were astonished that their violence did not intimidate the Chinese and at the subsequent Chinese attack on their fort in the Pescadores, since they thought them as timid and a "faint-hearted troupe," based on their experience with them in Southeast Asia. Early years (1624–1625) When the Dutch arrived in Taiwan, they found the southwest already frequented by a mostly-transient Chinese population numbering close to 1,500. On deciding to set up in Taiwan and in common with standard practice at the time, the Dutch built a defensive fort to act as a base of operations. This was built on the sandy peninsula of Taoyuan (now part of mainland Taiwan, in current-day Anping District). This temporary fort was replaced four years later by the more substantial Fort Zeelandia. Growing control, pacification of the aborigines (1626–1636) The first order of business was to punish villages that had violently opposed