Brian Spencer Eifler is a United States Army Major General currently serving as the commanding general of the 11th Airborne Division and the Deputy Commander of Alaskan Command. He assumed command of United States Army Alaska (USARAK) on 21 July 2021. On 6 June 2022 USARAK reflagged to 11th Airborne Division as part of the implementation of the Army's arctic strategy. He has also served as the Deputy Commander for Operations of the 10th Mountain Division and Operation Inherent Resolve from July 2017 to November 2018.