 Once in Confederate hands, Lincoln would be exchanged for Confederate Army prisoners of war held in Northern prisons and, Booth reasoned, bring the war to an end by emboldening opposition to the war in the North or forcing Union recognition of the Confederate government.Throughout the Civil War, the Confederacy maintained a network of underground operators in southern Maryland, particularly Charles and St. Mary's Counties, smuggling recruits across the Potomac River into Virginia and relaying messages for Confederate agents as far north as Canada.Booth recruited his friends Samuel Arnold and Michael O'Laughlen as accomplices.