Eastern Army victory, The Siege of Hasedō (長谷堂城の戦い) was one of a series of battles fought in the far north of Japan's main island of Honshū (the Tōhoku region) contemporaneous with the famous and decisive campaigns between Tokugawa Ieyasu and Ishida Mitsunari further south.

Hasedō was held by Mogami Yoshiaki and the castle garrison led by Shimura Takaharu and backed by a Tokugawa-loyal army of the Date clan.

Twenty thousand of Uesugi Kagekatsu's men moved towards Yamagata from the north, while Naoe Kanetsugu began his siege on Hasedō.

After Toshimasu defeat, Naoe Kanetsugu decided to head for the front lines, leaving the defense of the Uesugi north garrison to Kagekatsu; Having received reinforcements of 100 horsemen and 200 arquebusiers, he laid siege to Hasedō for fourteen days before Date Masamune forces arrived to relieve the castle.

However, in November 5, news arrived of Tokugawa Ieyasu's victory at the Battle of Sekigahara, and so Naoe called a full withdrawal of all his forces back to Yonezawa, putting an end to Uesugi's campaigns in the north.