The War of the Bend'r-Mahk was a war between Skyrim, Hammerfell, and High Rock that took place during the events of The Elder Scrolls Travels: Shadowkey.[1]

The conflict during the war was the cause of the creation of the Umbra' Keth.[2] In the war, the cities of Dragonstar and Elinhir fell into the hands of the Nords as they invaded Hammerfell.[3] Consequently, the city of Dragonstar itself was split into two, with the eastern part being controlled by Nords and western part being controlled by the Redguards.[4][5]

Eastern Hammerfell later made efforts to retake lands conquered by Skyrim during the war.[3] Later, the Bretons of High Rock lost a few of their old kingdoms in the east in the aftermath of the war.[6]