The Unionist Kentucky legislature demands that Confederates leave the state, but Leonidas Polk refuses unless the Federals do the same.
Ulysses S. Grant counters the Confederate invasion of Kentucky by invading the state with a force of his own.
Kentucky’s neutrality, which had been in question for several months, officially ends with the Confederate occupation of Columbus.
The recruitment of Federal troops in Kentucky threatens the state’s delicate neutrality.
Pro-Confederate Kentuckians boycott an election that results in Unionist candidates winning seats in the U.S. House of Representatives.
Both Kentucky and Delaware try to stay neutral in the conflict, but Kentucky’s position greatly overshadows tiny Delaware’s.