<Table> <Tr> <Th_colspan="2"> Second Battle of Bull Run (Battle of Second Manassas) </Th> </Tr> <Tr> <Td_colspan="2"> Part of the American Civil War </Td> </Tr> <Tr> <Td_colspan="2"> Second Battle of Bull Run, fought Augt . 29th 1862, 1860s lithograph by Currier and Ives </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> August 28--30, 1862 </Td> </Tr> <Tr> <Th> Location </Th> <Td> Prince William County, Virginia 38 ° 48 ′ 45" N 77 ° 31 ′ 17" W ﻿ / ﻿ 38.81246 ° N 77.52131 ° W ﻿ / 38.81246; - 77.52131 Coordinates: 38 ° 48 ′ 45" N 77 ° 31 ′ 17" W ﻿ / ﻿ 38.81246 ° N 77.52131 ° W ﻿ / 38.81246; - 77.52131 </Td> </Tr> <Tr> <Th> Result </Th> <Td> Confederate victory </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> United States (Union) </Td> <Td> CSA (Confederacy) </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr> <Tr> <Td> John Pope </Td> <Td> Robert E. Lee </Td> </Tr> <Tr> <Th_colspan="2"> Units involved </Th> </Tr> <Tr> <Td> <Ul> <Li> Army of Virginia </Li> <Li> Army of the Potomac: <Ul> <Li> III Corps; </Li> <Li> V Corps; </Li> <Li> VI Corps; </Li> <Li> IX Corps </Li> </Ul> </Li> <Li> Kanawha Division (detachment) </Li> </Ul> </Td> <Td> Army of Northern Virginia </Td> </Tr> <Tr> <Th_colspan="2"> Strength </Th> </Tr> <Tr> <Td> <P> 77,000 (estimated): </P> <Ul> <Li> 51,000 (Army of Virginia); </Li> <Li> 26,000 (Army of the Potomac: III, V, VI, IX Corps; Kanawha Division); </Li> </Ul> 62,000 engaged (estimated) </Td> <Td> 50,000 </Td> </Tr> <Tr> <Th_colspan="2"> Casualties and losses </Th> </Tr> <Tr> <Td> 14,462 (1,747 killed; 8,452 wounded; 4,263 captured / missing) </Td> <Td> 1,096 killed; 6,202 wounded </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Second Battle of Bull Run (Battle of Second Manassas) </Th> </Tr>

What was the significance of the 2nd bull run
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