"Around that time, the Suruga forces stationed in Okazaki attacked and seized the stronghold of Yamaoka [Dengoro] in Shigiwara. They brought up reinforcements from Okazaki and turned Shigiwara into a base for operations directed against the castle of Mizuno Kingo [Nobumoto] at Ogawa."
Earlier this year I wrote a post about Ogawa Castle. For Yoshimoto and his army
Strategic: Owari Operational: Chita Bay Tatical: Muraki, stepping stone into Owari.
Nobunaga no tame!