After receiving reinforcements from the colonial headquarters at Batavia, the Dutch launched an attack in 1635 and were able to crush opposition and bring the area around present-day Tainan fully under their control. After seeing Mattau and Soulang, the most powerful villages in the area, defeated so comprehensively, many other villages in the surrounding area came to the Dutch to seek peace and surrender sovereignty to the Europeans. Thus the Dutch were able to dramatically expand the extent of their territorial control in a short space of time, and avoid the need for further fighting. The end of the campaign came in February 1636, when representatives from twenty-eight villages attended a ceremony in Tayouan to cement Dutch sovereignty.