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Mōri Motonari's unification of the Chūgoku region

Type Event Region Japan Time 1555–1560

After his great victory at Itsukushima in 1555, Mōri Motonari swept away the remnants of the Ōuchi and Takeda factions, gradually gaining control of …

Timeline

  1. 1555Aki Province · Aki ProvinceThe battle of Itsukushima ended the power of Takeda Haruyoshi, and nominal heads like Ōuchi Yoshinaga could no longer control the west; Mōri Motonari swiftly took over key positions in Aki and set about eliminating Takeda remnants and recalcitrant forces.
  2. 1556–1558Bingo Province · Bingo ProvinceMōri Motonari campaigned into Bingo and Bitchū, defeating or compelling submission of local magnates, and gained control of the Iwami silver mine route and key Seto Inland Sea shipping lanes, bringing the economic lifeline of the west increasingly under Mōri control.
  3. 1559–1560Chūgoku region · Chūgoku regionBy around 1560 the Mōri clan controlled most of San'yō and had established a new balance of power in the west with the Amago and Ōtomo clans; Motonari's 'Lesson of the Three Arrows' emphasized cooperation among his three sons, laying the foundation for the Mōri family's later unification of the Chūgoku region and opposition to the kanpaku Toyotomi.

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