Protectorate General to Pacify the East

The Protectorate-General to Pacify the East was a short-lived military government established at Pyongyang by Tang Dynasty China in 668. It played an important role in the turbulent events of the peninsula in the late 7th century.

The protectorate was established shortly after the kingdom of Goguryeo was overthrown by Tang and Silla forces. It was governed by the Tang general Xue Rengui (薛仁貴). Tang established it to govern not only the commanderies established on Goguryeo and Baekje territory, but also to govern Silla itself.

Silla retaliated against the Protectorate's domination by aiding Geom Mojam's rebellion in the north, and attacking Protectorate forces in Baekje territory. In 671 Silla seized Sabi Castle from the Tang armies. They overthrew the puppet government of Buyeo Yung which had been established there. Angered, Tang declared a younger brother of King Munmu to be Silla's rightful ruler, but was unable to follow this symbolic blow with a military one.

As the result of the Silla–Tang Wars, Silla forces expelled the Protectorate armies from the Korean Peninsula in 676. The Protectorate's capital was officially transferred to the former Goguryeon city of Shinseong, where it continued to oversee the affairs of Goguryeo refugees and portions of the former Goguryeo territory.

The deposed king of Goguryeo, King Bojang was redesignated "King of Joseon" (Hangul : 요동주도독 조선왕 Hanja:遼東州都督朝鮮王) and made governor of the Protectorate. His persistent activities in aiding rebellions led to his eventual banishment, but Bojang's descendants continued to govern the Protectorate for several generations. The Protectorate of this period is sometimes referred to as "Little Goguryeo" or "Lesser Goguryeo" (소고구려/小高句麗).

Local unrest and the rising power of Balhae forced the Protectorate to change capitals several times. The Protectorate was finally extinguished in 756.

Administration
Administratively, it was intended to oversee nine commanderies (Hangul :9도독부  Hanja: 九都督府), 42 prefectures(州) (later reorganized into 14) and 100 counties(縣).

Nine commanderies
Sinseongju (Hangul: 신성주 Hanja/Hanzi :新城州) Yoseongju (Hangul: 요성주Hanja/Hanzi :遼城州/辽城州) Gamulju (Hangul: 가물주 Hanja/Hanzi :哥勿州) Wuirakju (Hangul: 위락주Hanja/Hanzi :衛樂州/卫乐州) Saraju (Hangul: 사리주 Hanja/Hanzi :舍利州) Keosoju (Hangul: 거소주 Hanja/Hanzi :去素州/居素州) Wueolhuiji (Hangul: 월희주 Hanja/Hanzi :越喜州) Keodanju (Hangul: 거단주 Hanja/Hanzi :去旦州) Keonanju (Hangul: 건안주 Hanja/Hanzi :建安州)

14 prefectures(州)

 * Nansu (Hangul: 남소주Hanja/Hanzi :南蘇州)
 * Gaimou (Hangul: 개모주Hanja/Hanzi :蓋牟州)
 * Dana (Hangul: 대나주Hanja/Hanzi :大那州)
 * Changyan (Hangul: 창암주Hanja/Hanzi :倉巖州)
 * Momei (Hangul: 마미주Hanja/Hanzi :磨米州)
 * Jili (Hangul: 적리주Hanja/Hanzi :積利州)
 * Lishan (Hangul: 여산주Hanja/Hanzi :黎山州)
 * Yanjin (Hangul: 연진주Hanja/Hanzi :延津州)
 * Mude (Hangul: 목저주Hanja/Hanzi :木底州)
 * Anshi (Hangul: 안시주Hanja/Hanzi :安市州)
 * Chubei (Hangul: 제북주Hanja/Hanzi :諸北州)
 * Shili (Hangul: 식리주Hanja/Hanzi :識利州)
 * Funie (Hangul: 불열주Hanja/Hanzi :拂涅州)
 * Baihan (Hangul: 배한주Hanja/Hanzi :拜漢州)

Governors

 * Xue Rengui (, 614-683) - 안동도호부사/安東都護府使
 * Go Bojang (677-681) - (Hangul : 요동주도독 조선왕 Hanja:遼東州都督朝鮮王) and (Hangul : 조선군왕 Hanja:朝鮮郡王)
 * Go Gusu (Hangul : 고구수 Hanja: 高仇須) (664?-738?) - 안동도독/安東都督
 * Go Bowon (Hangul : 고보원 Hanja: 高寶元) (686-?), Grandson of Bojang (Hangul : 조선군왕 Hanja:朝鮮郡王) later (Hangul : 충성국왕 Hanja:忠誠國王)
 * Go Deokmu (Hangul : 고덕무 Hanja: 高德武), Son of Bojang - 안동도독/安東都督
 * Go Jin (Hangul : 고진 Hanja : (高辰) (700-773) Grandson of Bojang
 * Xue Na : 薛訥 - 安東道經略 안동도경락