Rubuta ci gaba don wannan sakin layi - A tsakiyar karni na 19, an tattara yawancin baƙi na Irish a cikin rundunonin Irish na Sojojin Amurka a lokacin Yaƙin Mexico da Amurka. Yawancin sojoji 4,811 da aka haife su a Ireland sun yi aiki a cikin Sojojin Amurka, amma wasu sun yi watsi da Sojojin Mexico, musamman don guje wa zalunci da jami'an Furotesta da kuma nuna bambanci da Katolika a Amurka. Waɗannan su ne "San Patricios", ko Saint Patrick's Battalion - rukuni na Irish wanda John O'Riley wanda aka haifa a Galway ya jagoranta, tare da wasu Jamusawa, Scottish da Katolika na Amurka. Sun yi yaƙi har sai sun mika wuya a yakin basasa na Churubusco
, kuma gwamnatin Amurka ta kashe su a waje da Mexico City a ranar 13 ga Satumba, 1847. Ana tunawa da bataliya a Mexico kowace shekara a ranar 12 ga Satumba.