 On 22 December 1792, the Militia of Greenbrier County was reorganized as volunteer companies of the 13th Brigade, Virginia Militia.During the War of 1812, five companies from the 13th Brigade were combined with seven companies from what is now northern West Virginia to form the 2nd Regiment, Virginia Volunteer Militia.During the American Civil War, units with Union sympathies were combined to form the 5th and 9th West Virginia Volunteer Infantry Regiment.