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.[2]

The conflict during the war was the cause of the creation of the Umbra' Keth.[3] In the war, the cities of Dragonstar and Elinhir fell into the hands of the Nords as they invaded Hammerfell.[4] 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.[5][6]

Eastern Hammerfell later made efforts to retake lands conquered by Skyrim during the war.[4] Later, the Bretons of High Rock lost a few of their old kingdoms in the east in the aftermath of the war.[7] A knight of Wayrest by the name of Sir Roderic fought in this war, and was said to have won many great battles.[8]