. . "13th" . "13th United States Infantry" . . . . . . "13th Battalion" . . . . . . . "13th Infantry Regiment (United States)#History" . "13th Regiment Infantry U.S. Colored Troops" . . . "13th Battalion, Mounted Infantry" . . . "13th Infantry Regiment (United States)" . . "13th Infantry Battalion" . "13th U.S." . . . "13th US Infantry" . . . . . . . . . . . . . . . "13th United States Infantry Regiment" . . "1798" . "U. S. Thirteenth Infantry Regiment" . . "13th Infantry (Mechanized)" . . "Forty Rounds" . . . "1939" . "13th Infantry" . "13th Infantry Regiment" . . "13th U.S. Infantry" . . "13th Regiment U.S. Infantry" . "13th United States" . . . . "13th Regiment Heavy Artillery U.S. Colored Troops" . "13th United States, 1st Battalion" . . "13th Battalion, Light Artillery" . "13th Infantry Regiment (United States)" . . . "1861" . . . "100px" . "13th U.S. Infantry Regiment" . . . "13th Regiment of Infantry" . . . . . . .