Kings Mountain National Military Park... / by Dave Hileman just over the North Carolina boarder in South Carolina. This was a critical battle for the success of the American Revolution. The American's defeated a large army of Loyalists and forced Cornwallis to retreat. This booster American moral and suppressed many with loyalists leanings in the Carolinas to not join the British cause. The battle was intense - lasting only a bit over an hour. This is the monument on top of the steep hills where the British troops were captured.