Uesugi Kenshin

Nagao Kagetora (later Uesugi Kenshin) was adopted into the Uesugi clan and became the lord of Echigo Province. This adoption gave him the legitimacy to rule and the resources to become a major daimyo. He took the name Uesugi Kenshin and began his campaigns to expand his influence.

Uesugi Kenshin launched a major campaign into the Kanto region, aiming to challenge the Hojo clan's dominance. He captured several castles, including Odawara's outer defenses, but failed to take the main Hojo stronghold. This campaign demonstrated his ambition but also his limitations in sustained siege warfare.

Uesugi Kenshin engaged Takeda Shingen in the fourth Battle of Kawanakajima, a fierce contest that ended inconclusively. Kenshin's forces reportedly broke through to Shingen's command post, with Kenshin allegedly attacking Shingen personally. The battle solidified Kenshin's reputation as a brilliant tactician.

Uesugi Kenshin besieged Odawara Castle, the stronghold of the Hojo clan, for several weeks. Despite his efforts, the castle's defenses held, and he was forced to withdraw due to supply shortages and the approach of Takeda Shingen's forces. The siege was a strategic failure.