confederate casualties were about 80, union 40. butler was furious with gillmore's timidity and incompetence and arrested him. gillmore requested a court of inquiry, which was never convened, but grant later reassigned him and the incident was dropped. on june 14–17, grant and the army of the potomac slipped away from lee and crossed the james river. they began moving towards petersburg to support and renew butler's assaults. the second battle of petersburg and the siege of petersburg would soon follow.