1555年：Battle of Itsukushima - 戰國大名 勢力地圖
Mōri Motonari defeated Sue Harukata at Itsukushima and greatly expanded his power in the Chūgoku region. The victory hastened the decline of the Ōuchi and the rise of the Mōri.
當年的主要事件
- 1555-10: Battle of Itsukushima — Mōri Motonari defeated Sue Harukata at Itsukushima and expanded his power in the Chūgoku region.
- 1555-07: Second Battle of Kawanakajima — Takeda Harunobu and Nagao Kagetora again confronted each other in northern Shinano.