Tuhia he whakamāramatanga mō tēnei whitianga - "Michigan" i noho tana mahi ki te Atlantic Fleet. He maha nga wa i rere ai ia i te takutai rawhiti o te United States me te Moana Karipiana, a i te Paenga-whawha o te tau 1914 i uru atu ia ki te nohoanga o te United States o Veracruz i te Pakanga Taiao o Mexico
He aha? Whai muri i te urunga mai o te United States ki te Pakanga Tuatahi o te Ao i te Paenga-whawha 1917, i whakamahia a "Michigan" hei kaitiaki waka me te kaipuke whakangungu mo te ope moana o te pakanga. I te marama o Hanuere 1918, i pakaru te pou o tana kaia i mua i nga moana kaha, e ono nga tangata i mate. I te tau 1919, i kawea mai e ia nga hoia mai i Uropi. I whakahaerehia e te kaipuke nga haerenga whakangungu i te tau 1920 me te 1921, engari ko tana mahi i tapahia e te Tiriti Naval o Washington i hainatia i te Hui-tanguru 1922, i whakahau i te whakakore i te "Michigan" me te "South Carolina". I whakakorehia te "Michigan" i te Hui-tanguru 1923 ka pakaru i te tau e whai ake nei.