The Battle of Sekigahara (関ケ原の戦い, Sekigahara no Tatakai) is largely considered to be one of the most decisive battles in the late Warring States period. Essentially, it is a power struggle for the right to rule the land after Hideyoshi's death. Other battles considered a part of this campaign are the siege at Fushimi Castle, the second siege at Ueda Castle, the Uesugi-Date conflict at Hasedō, the clash at Ōtsu Castle, and the Kyushu campaign at Ishigakibaru. The armies led by the main commanders first clashed at Kusegawa, but this battle decided the fate of both armies.