11月17日李承晚政府宣布济州戒严。在此之前,第9团团长宋尧赞发出布告称,在距离海 岸线五公里的山区地带通行的人,视为暴力份子将予以格杀。从此,就对山区村落大肆展 开“焦土化”的强力镇压作战。与此有关的美军情报报告书中记载了:“第九团基于山区 地带村落的所有居民,明显提供游击队帮助与方便的假设之下,而对村落居民采取‘大量 屠杀计画’(Program of mass slaughter)。”
Brutal suppression of the protests by the nationalpolice and the army controlled by the U.S. militarygovernment under American Colonel James A. Casteel,commander of Jeju's security forces, resulted inthousands of deaths, the destruction of manyvillages on the island, and more rebellions on theKorean mainland.