<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> <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> <Li> Army of Virginia </Li>

Who was the union commander during the first battle of bul run