 The Union infantry and cavalry force was unable to break through the Confederate fortifications at Bailey's Creek and Fussell's Mill and was withdrawn, but it achieved its desired effect of momentarily reducing Confederate strength at Petersburg.The planned attack on the fortifications went ahead on July 30, but the resulting Battle of the Crater was an embarrassing Union defeat, a fiasco of mismanaged resources by Grant's subordinates at a heavy cost in casualties.On the same day the Union failed at the Crater, Confederate Lt. Gen. Jubal A.