Manzhou Yuanliu Kao provides records which show that the
Balhae had occupied the
Bisa Fortress (비사성) at the southern tip of the
Liaodong Peninsula. The
History of Liao records that the Balhae established provinces at the
Sin Fortress (신성),
Gaemo Fortress (개모성),
Baegam Fortress (백암성),
Yodong Fortress (요동성) and
Ansi Fortress (안시성) area in Liaodong, as well as a substantial portion of the
Liaoxi area. The Balhae sovereign's message to
Yamato Kingdom in 796 states that it has recovered the entire old
Goguryeo territory and its ruler's authority now shines beyond the
Liao River. The Balhae came to occupy the
Songhua and
Wusuli River basins as well as the whole adjoining coastal zone along the
Sea of Japan (East Sea). • 약홀주(若忽州) (present-day
Dandong) • 목저주(木底州) (present-day Yewutai (葉武臺),
Faku County,
Liaoning Province, near the
Taizi River) • 현도주 (玄兎州) (near present-day
Manzhouli) == Correspondence ==