Busanjinjiseong

Branch Wall-fortress in Busanjin 부산진지성
Dong-gu, Busan, Republic of Korea
Type	Japanese castle (Waeseong)
Height	1.5 ~ 10m
Site information
Condition	Reconstructed, serves as historic site
Site history
Built	1593, rebuilt 1974
Built by	Mori Terumoto (1593), Government of the Busan Metropolitan City (1974)
In use	1593-1895
Materials	stone, wood, plaster walls (original); concrete, stone, wood, plaster walls (reconstruction)
Demolished	1910 as a result of the order of the demolish to Korea's Fortress by Japanese Government.

Busanjinjiseong
Hangul	부산진지성
Hanja	釜山鎭支城
Revised Romanization	Busanjinjiseong
McCune–Reischauer	Pusanjinchisŏng
Jaseongdae
Hangul	자성대
Hanja	子城臺
Revised Romanization	Jaseongdae
McCune–Reischauer	Chasŏngdae

The Branch Wall-fortress in Busanjin (also known as Jaseongdae) is located at Beomil-dong, Dong-gu, Busan Metropolitan City, the Republic of Korea. The existing wall-fortress remains were constructed by the Japanese military during the Japanese invasion of Korea (1592-1598). There are two assertions on the name of Jaseong (Subordinate Castle). One is that the wall-fortress on the current Mt.Jeungsan, Jwacheon-dong is the mother castle and accordingly called Jaseong. The other is that Jaseong was constructed on the mountain top as the General's terrace.

The Busanjinjiseong Fortress was also called Mangongdae in memory of Ming Dynasty General Wan Shide who stayed at Jaseongdae to reinforce the Korean soldiers defending against the Japanese invasion of Korea. The wall-fortress was repaired after General Wan Shide returned home.

It was used as Gyeongsangjwado Headquarters which later moved into its present location in Suyeong. It was also used as the Busanjin Naval Headquarters. The wall-fortress was removed by the Japanese during their forced occupation. Around this time the sea encircling Jaseongdae was filled with land, reducing Jaseongdae to a smaller site, however it was later repaired.

Coordinates: 35°08′10″N 129°03′40″E / 35.13611°N 129.06111°E