Battle of Omosu

Infobox Military Conflict
conflict=Battle of Omosu
partof=


caption=
date=1580
place=coast of the Izu peninsula
casus=
territory=
result=Hōjō victory
combatant1=Hōjō forces
combatant2=Takeda forces
commander1=Hōjō Ujimasa
commander2=Takeda Katsuyori
strength1=
strength2=
casualties1=
casualties2=

The 1580 battle of Omosu was one of many battles fought between the Hōjō and Takeda clans during Japan's Sengoku period. 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, the head of the Hōjō, and those of Takeda Katsuyori, the head of the Takeda. While the navies faced off, the land armies of each family advanced towards one another. In the end, Hōjō were victorious.

References

*Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co.