Hasedō

The Battle of Hasedō (長谷堂城の戦い), also called Siege of Hasedō, is one of the battles that took place during the Sekigahara campaign. Due to their allegiance with the Western Army, the Uesugi troops marched into northern Japan in a bid to separate the Eastern Army's forces. To defend against the invasion, the Date and Mogami forces intercept them in early October. The series of conflicts between is often known as the Keichō-Dewa Conflict (慶長出羽合戦) to describe the specific time and location of the battle.

Their conflicts started before the campaign in Kyushu and the siege against Takatsugu Kyōgoku. After taking a fair share of enemy positions, the Uesugi troops under Kanetsugu's order aimed to take Hasedō Castle away from the Mogami, which became the last conflict between them.

Samurai Warriors
The battle first appears in Samurai Warriors 2. The Uesugi side are first shown to be successful in the siege, but the shocking news of Mitsunari's defeat at Sekigahara forces them to stop the siege and flee to escape point. Early during the retreat, Keiji convinces Kanetsugu not to worry anymore of the loss of Mitsunari, but instead focus on the battle that lies in front of them. After passing three gates, they are ambushed, but Keiji holds the rearguard and closes the third gate just after Kanetsugu and the others pass it. Kanetsugu praises his actions and just as they are about to escape safely, the main Date army appears and Masamune insults Kanetsugu for his constant talking about honor. After defeating both Yoshiaki and Masamune, the road to escape point is secured.

The Date version focuses on pursuing the fleeing Uesugi army. Should Masamune fail to catch Kanetsugu, the battle is lost. The route through the area is slightly different as certain gates won't open at all, forcing Masamune to take a longer route in some cases.

In Samurai Warriors 3, the battle focuses more on the actual siege that took place before the retreat. In addition, both armies receive new allies, Aya appears on the Uesugi army while Magoichi aids Masamune.