established a temporary seat and regional office for the Ming dynasty in Taiwan in the hopes of eventually retaking mainland China. In an attempt to defeat these warriors and pirates without a war, the Kangxi Emperor strengthened his dynasty's sea ban ("haijin") in 1661 and issued the order for the Great Clearance of the southeastern coast. Chinese, especially the ethnic Tanka, living off the coast of Shandong to Guangdong were ordered to destroy their property and move inland 30 to (about ) upon pain of death in order to deprive the Taiwanese rebels of support or targets to raid. The governors and viceroys of the affected provinces submitted scathing memorials and the policy was reversed after eight years. In 1669 and 1671, however, strong typhoons destroyed what few settlements existed.