 Mosby's Rangers, also known as the 43rd Battalion Virginia Cavalry, were a special force of Confederate military troops who opposed the Union control of the Loudoun Valley area.Under the command of General Robert E. Lee, John S. Mosby had formed the battalion on June 10, 1863, at Rector's Cross Roads near Rectortown, Virginia.Mosby practiced psychological and guerrilla warfare techniques to disrupt the Union stronghold.