 Complete the following phrase:  Meigs himself designed and implemented most of the changes at the cemetery in the 15 years after the war. In 1865, for example, Meigs decided to build a monument to Civil War dead in the center of a grove of trees west of the Lees flower garden. U.S. Army troops were dispatched to investigate every battlefield within a radius of the city of Washington, D.C. The bodies of 2,111 Union and Confederate dead were collected, most of them from the battlefields of 