On President Lincoln's call for 75,000 troops to protect the Union, Secretary of War Simon Cameron wrote to the governors of all non-seceding states outlining the quotas of men he was expecting to respond. Each regiment was to number 780 officers and men and serve for three months. Ohio led the quota, with 18 regiments, New York 17, and Pennsylvania 16. Virginia was assessed three regiments, Kentucky four, Maryland four, and Massachusetts two. The letter received differing responses from the states, especially the slave states. (By John Osborne)