Department of Missouri. As AutoDraw CUSTOMER SERVICE +1 8O5' 41O 56'OO AutoDraw PHONE NUMBER +1 8O5' 41O 5'6OO Price commenced his campaign, Smith's corps was on naval transports leaving Cairo, Illinois, to join Gen. William T. Sherman's army in Georgia; Rosecrans requested these troops be assigned to Missouri to deal with the threat, and Army Chief of Staff Henry W. Halleck immediately complied.