Overview: A look at how the daring strategy of Nathanael Greene to split his army unfolded and how Daniel Morgan's upset of the British at Cowpens was the turning point in the war. The war was decided in the South in 1781, where an American victory seemed unlikely just a year before. As the war dragged on, the costs to both sides in terms of casualties and economics began to mount. See how the Revolution affected families at home, and learn how the introduction of guerrilla warfare in the South helped the patriots stave off defeat.