| Siege of Oshi | |||||||
|---|---|---|---|---|---|---|---|
| Part of Supremacy of Toyotomi Hideyoshi | |||||||
 Oshi Castle | |||||||
| |||||||
| Belligerents | |||||||
| Hōjō forces | Toyotomi forces | ||||||
| Commanders and leaders | |||||||
|
Narita Nagachika Masaki Tanba Kaihime |
Ishida Mitsunari Ōtani Yoshitsugu Natsuka Masaie Akaza Naoyasu Satake Yoshinobu Sanada Yukimura | ||||||
| Strength | |||||||
|
619 samurai 2000 local peoples | 23,000 troops | ||||||
The 1590 Siege of Oshi (忍城の戦い, Oshi-jō no tatakai) was one of many battles in Toyotomi Hideyoshi's campaigns against the Hōjō clan during Japan's Sengoku period.