The 1st Armored Division (第一機甲師団), also known as the Heimdallr Garrison (帝都守備隊), is stationed in the capital of Erebonia, Heimdallr.
Background[]
During the coup d'état of the Noble Alliance in S.1204, the 1st Armored Division was tasked with the protection of Heimdallr. However, they were no match for the brand-new Panzer Soldats and suffered major losses against them.