The number of Gundan of Mutsu Province was increased to seven troops with 7,000 soldiers by adding Iwaki-dan, and soldiers were allotted to seven Gundan by increasing 1,000 soldiers in 843.
陸奥国の軍団は磐城団が増設されて7団7000人となり、承和10年（843年）に1000人を増員して7軍団に割りふった。