What was Lincoln's reaction to the seven states that seceded?

Abraham Lincoln's reaction to the seven states that seceded was one of resolute determination to preserve the Union and the Constitution. He refused to recognize the Confederacy, arguing that the seceding states had no right to do so, and he called for 75,000 volunteers to put down the rebellion. He also called for a special session of Congress in order to restore the Union and prevent any further seceding. Furthermore, he issued a Proclamation of Blockade against the Southern states and declared their ports closed. He also declared a state of insurrection, which enabled him to suspend the writ of habeas corpus and take whatever measures were necessary.

In order to ensure that the Union remained intact, Lincoln employed a variety of strategies which included:

• Refusing to recognize the Confederate states
• Calling for 75,000 volunteers to put down the rebellion
• Calling for a special session of Congress
• Issuing a Proclamation of Blockade against the Southern states
• Declaring a state of insurrection
• Suspending the writ of habeas corpus

Lincoln's firm stance on the issue of secession was essential in maintaining the integrity of the Union, and his refusal to recognize the Confederacy was a key factor in the preservation of the United States.