“The U.S. Army Corps of Engineers’ response to Sept. 11, 2001, began on day one. Only a few hours after the terrorists struck, engineers from Corps of Engineers’ headquarters in Washington, D.C., went to the Pentagon to assess the damage, and personnel from North Atlantic Division and New York District made their way to the World Trade Center to assist rescue efforts and begin planning the ensuing support operations,” said Bernard Tate, Corps’ headquarters, in a recent article about deployments.