The 1580 was one of many battles fought between the
Hōjō and
clans during Japan's
Sengoku period
The was a period in History of Japan, Japanese history of near-constant civil war and social upheaval from 1467 to 1615.
The Sengoku period was initiated by the Ōnin War in 1467 which collapsed the Feudalism, feudal system of Japan under the ...
. It is distinguished, however, as one of the very few naval battles to be fought in pre-modern Japan.
The battle took place off the coast of the
Izu peninsula between the navies of
Hōjō Ujimasa
was the fourth head of the later Hōjō clan, and ''daimyō'' of Odawara. Ujimasa succeeded the territory expansion policy from his father, Hojo Ujiyasu, and achieved the biggest territory in the clan's history.
Early life and rise
In 1538, Uj ...
, the head of the Hōjō, and those of
Takeda Katsuyori
was a Japanese ''daimyō'' of the Sengoku period, who was famed as the head of the Takeda clan and the successor to the legendary warlord Takeda Shingen. He was son in law of Hojo Ujiyasu.
Early life
He was the son of Shingen by the daughter ...
, the head of the Takeda.
The Fūma ninja led by
Fūma Kotarō covertly infiltrated and attacked a camp of the
Takeda clan
The was a Japanese samurai clan active from the late Heian period until the late 16th century. The clan was historically based in Kai Province in present-day Yamanashi Prefecture. The clan reached its greatest influence under the rule of Taked ...
forces at night, succeeding in causing severe chaos in the camp, which resulted in massive casualties among the disoriented enemies as they attacked each other.
[Joel Levy, ''Ninja: The Shadow Warrior'', p.165-166.]
Later, while the navies faced off, the land armies of each family advanced towards one another.
In the end, the Hōjō were victorious.
References
1580 in Japan
Omosu 1580
Omosu
Omosu 1580
Omosu
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