Many Jewish southerners fought for the Confederacy. By September, 1861, Judah Benjamin had become the Secretary of War of the Confederacy — a Louisianan, he had been the first Jewish U.S. Senator before. Jewish soldiers in the ranks observed Yom Kippur on this date in 1861.
The Day of Atonement in Camp.
We learn, from Pensacola , that the soldiers of the Hebrew faith, in the Confederate army at that point, some forty in number, celebrated, by permission of General Bragg, the Jewish festival of the Atonement. In the prayers which they offered up to the God of their fathers, they forgot not the Government for which they have taken up arms.