the problem is, ewell is blocking the road. by the time burnside gets here, the army of northern virginia has basically filed down this road. look how wide open it is. no problems. and because it is smooth sailing, the rearguard of engineers have blocked a small stream. ok, so when you see the stream the engineers, that is it. because it is dusk, burnside pulls up and he sees confederates on the other side of the river, which is really a creek not wider than two of these tables. it has steep banks. burnside sees the confederates on the other side and he is a little nervous. because ambrose burnside is wonderfully mediocre, he chooses not to force a crossing. and instead, he chooses to backtrack and follow the other two corps. now the backtracking alone is problematic, but what he actually does is he turns the whole column around, so the lead regiment stays in the lead, rather than have everybody turn around like this. everybody has to march. i am sure my military discipline is fantastic. we are going to march. and it creates a