The current 15th Infantry was activated[1] during the Civil War on 3 May 1861 by General Order No. 33[2][3] with its headquarters first in Wheeling,[4] West Virginia then Cleveland, Ohio, then on to Newport Barracks, Kentucky and finally ending up in Fort Adams, Rhode Island.[5] By the end of the Civil War, the regiment had fought in 22 major engagements, including Chattanooga, Chickamauga, Murfreesboro, and Atlantaas a part of BG King's Brigade of Johnston's Division, XIV Army Corps of the Army of the Cumberland.[6] The Regiment was a key element of the only Regular Brigade in Sherman's Army. The regiment's crest includes the acorn, the symbol of the Major General George Thomas's XIV Corps, and the mountains of stone to symbolize the Corps' firm stand as the "Rock of Chickamauga". The four acorns represent the four major engagements. What are you looking for specifically.