The second siege of Odawara took place in 1569. Takeda Shingen attacked Odawara Castle, as a response to the Hōjō clan's intervention in the Takeda clan's invasion of Suruga Province.
== Background == In 1568, as a response to the Hōjō intervention in the Takeda invasion of Suruga Province, Shingen broke his alliance with the Hōjō, and came into Hōjō territory.
== Siege == Shingen came into Musashi Province from his home province of Kai, attacking the Takiyama and Hachigata Castles, where Ujiyasu's sons repulsed them. After failing at the siege of Takiyama and the siege of Hachigata (1568), Shingen nevertheless moved to Sagami Province against the Hōjō's capital fortress of Odawara in 1569. The siege lasted only three days, after which the Takeda forces burned the town to the ground and left.
== Aftermath == Odawara castle itself did not fall and was still held by the Hōjō at end of Shingen's campaign in Sagami Province.
References
Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co.