The Army of Northern Virginia moved north towards Pennsylvania behind a solid Confederate cavalry screen. In one of several Union attempts to penetrate this screen, a sharp cavalry battle was fought near the village of Aldie in Loudoun County, Virginia. General Judson Kilpatrick' s Union cavalry clashed with Confederate Colonel Thomas J. Munford and his men in a four hour late afternoon fight. Munford withdrew but the cavalry screen held. Union losses were around three hundred dead and wounded, while Munford had just over a hundred killed and injured. (By John Osborne)