Rubuta ci gaba ga wannan sakin layi - An sake kiran Maine na 2 zuwa sabis na Tarayya a ranar 18 ga Yuni, 1916, kuma ya yi aiki tare da iyakar Mexico da Amurka a Texas don kare kariya daga hare-haren makiya. A ranar 13 ga Afrilu, 1917, an haɗa abubuwa na 1st New Hampshire Volunteer Infantry a cikin 2nd Maine don ƙirƙirar Rukunin Rukunin 103. An sanya sabon rundunar a cikin Brigade na 52 na Infantry (tare da Rundunar Infantry ta 104) a matsayin wani ɓangare na Rundunar Infantry ta 26, "Yankee Division". Rundunar ta yi aiki a Yammacin Yamma kuma ta kasance ɗaya daga cikin rukunin farko na Tsaro na Kasa a cikin yaƙi a lokacin yaƙin. Na 103 ya yi aiki a yakin Champagne-Marne inda suka sami dandano na farko na fada, kuma suka ci gaba da yin fada a cikin Aisne-Marne
Ka yi haƙuri. 'Yan New England masu zub da jini sun ci gaba da gwagwarmaya a yakin Saint-Mihiel, da kuma a cikin Meuse-Argonne Offensive, mafi girma da kuma mafi yawan jini na yakin basasa na Amurka.