kson used the national military in the South Carolina during the Nullification Crisis.
             The Confederate States of America named Jefferson Davis as their president. Most people, including Lincoln, believed that southern unionism would eventually fail and the seceded states would rejoin the Union on their own. Furthermore, Lincoln worried that if he reacted too harshly to the secession of these seven states, the other slave states would secede as well. In the meantime, South Carolina began to resent the federal troops that guarded arsenals in Charleston harbor. Fort Sumter was lost and now a possession of the confederates. Lincoln realized he might be faced with more than a small insurrection. News of Sumter's surrender solidified Unionist support in the North, and as Lincoln had feared, many of the slave states that had remained in the Union to this point now seceded. Tennessee, Arkansas, North Carolina, Delaware, and most of Virginia (the Unionist districts in northwest Virginia broke off to form their own Union state, West Virginia.
             ...