3. Benedict Arnold’s Defection
Benedict Arnold, once a celebrated hero of the American Revolutionary War, became synonymous with treason after plotting to surrender the strategic fort at West Point to the British in 1780. Disillusioned by perceived slights and financial difficulties, Arnold sought to change sides, negotiating with British Major John André for a substantial reward and a commission in the British army. The conspiracy was thwarted when André was captured, leading to Arnold’s flight to British lines. His name has since epitomized betrayal in American culture (mountvernon.org).



