Siege of Osaka

BelligerentsCommanders and leadersTokugawa Ieyasu
Tokugawa Hidetada
Todo Takatora
Ii Naotaka
Matsudaira Tadanao
Date Masamune
Honda Masanobu
Honda Tadatomo†
Satake Yoshinobu
Asano Nagaakira
Maeda Toshitsune
Uesugi Kagekatsu
Mōri Hidenari
Sanada Nobuyuki
Hosokawa Tadaoki
Mizuno Katsushige
Tachibana MuneshigeToyotomi Hideyori†
Yodo-dono†
Sanada Yukimura†
Gotō Mototsugu†
Tsutsui Sadatsugu†
Akashi Takenori
Chōsokabe Morichika
Mōri Katsunaga†

Kimura Shigenari†
Ōno Harunaga†
†
Ban Naoyuki†
Oda Nobukatsu (defected to Tokugawa side)
†Strength 164,000 (winter)
150,000 (summer) 120,000 (winter)
60,000 (summer)

The siege of Osaka (大坂の役, Ōsaka no Eki; or, more commonly, 大坂の陣Ōsaka no Jin) was a series of battles undertaken by the Japanese Tokugawa shogunate against the Toyotomi clan, ending in that clan's destruction. Divided into two stages, the winter campaign and the summer campaign, it lasted from 1614 to 1615. The siege put an end to the last major armed opposition to the establishment of the Tokugawa shogunate. The end of the conflict is sometimes called the Genna Armistice (元和偃武, Genna Enbu), because the era name was changed from Keichō to Genna immediately following the siege.