 In October 2016, the battalion marked its first visit to the Korean Peninsula with a deployment to Camp Hovey, South Korea with the 1st Brigade, 1st Infantry Division.The deployment was part of an HQDA initiated Armored Brigade Combat Team (ABCT) rotation of forces to the Republic of Korea (ROK) in support of national level and theater specific requirements.The mission of the Diehard Battalion was to enable 1ABCT to deter North Korean aggression and maintain peace on the Korean Peninsula; and, if deterrence failed, enable the Devil Brigade to "Fight Tonight" in support of the US-ROK Alliance.