 Complete the following phrase:  Wallaces most notable service came on Saturday, July 9, 1864 at the Battle of Monocacy part of the Valley Campaigns of 1864. Although Confederate General Jubal A. Early and an estimated 15,000 troops defeated Wallaces troops at Monocacy Junction, Maryland, forcing them to retreat to Baltimore, the effort cost Early a chance to capture Washington, D.C. Wallaces men were able to delay the Confederate advance toward Washington for an entire day, giving the city time to organize its defenses. Early arrived in Washington at around noon on July 11, two days after defeating Wallace at Monocacy, the northernmost Confederate victory of the war, but Union reinforcements had already arrived at 