Nathaniel P. Banks, commanding Federals around Baltimore, receives orders to use military force to prevent the state from seceding.
William S. Rosecrans’s Federals clash with John B. Floyd’s Confederates as Rosecrans tries to strengthen his foothold in western Virginia.
After six days, John C. Fremont finally responds to Abraham Lincoln’s request to modify clauses in his controversial Missouri proclamation.
Confederate commanders bicker over where their troops should be positioned, hindering their chances to hold western Virginia.
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.