noun
Protectorate General to Pacify the East
Historical term for a Tang-dynasty Chinese military office established in Pyongyang in 668 CE. Used in historical contexts.
See also: 都護府
安東都護府は唐の時代に設置された。
The Protectorate General to Pacify the East was established during the Tang dynasty.
都護府 is the general term for a protectorate general, while 安東都護府 specifically refers to the one established in the east (Pyongyang).
From Chinese 安東都護府 (Āndōng Dūhùfǔ), literally 'Protectorate General to Pacify the East'. The term is a historical proper noun with no further decomposition in Japanese.