The Confederacy turns to a new form of naval warfare, expels the last Federal troops from Texas, and continues its military buildup.
Joseph E. Johnston takes command of Confederates at Harpers Ferry, Va., and soon learns that the place is highly vulnerable to attack.
Benjamin Butler oversteps his authority and sends his Federal troops to seize the troublesome city of Baltimore.
Confederates keep a tenuous hold on hostile northwestern Virginia while Unionists consider seceding from the rest of the state.
A riot breaks out in St. Louis as Federal forces struggle to maintain order and Missourians flee their state.
Nathaniel Lyon and his Federal Home Guard cause controversy in Missouri by forcing the surrender of an allegedly pro-Confederate state militia force.