On September 24, following the Battle of Antietam, took steps tominimize opposition to members of the Northern peace movement. Manyof these individuals were also Southern sympathizers. On September23, Lincoln had released his Preliminary Emancipation Proclamation.Perhaps an even more controversial act the following day, Lincolnsuspended the habeas corpus section of the Bill of Rights. Heordered military trials for people who were discouraging voluntaryarmy enlistments and other acts of disloyalty. The suspension ofhabeas corpus combined with the Preliminary EmancipationProclamation, caused McClellan to formulate plans to resist thesenew developments.