 Complete the following phrase:  Baruch began his career as a surgeon in the American Civil War; serving in the Confederate States Army and reportedly entering the service without even having lanced a boil. He initially accepted a commission as assistant surgeon of the 3rd South Carolina Battalion on April 4, 1862, and in August of that same year, he transferred to the 13th Mississippi Infantry Regiment, in the position of surgeon. During the war, Baruch gained considerable surgical experience. After the Confederate 