Maj. Gen. Glenn H. Curtis, adjutant general of the Louisiana National Guard, U.S. Sen. David Vitter and other federal, state and local officials view a temporary retaining wall built by Louisiana Guardsmen in Shreveport, La., June 9, 2015. The wall is holding back water, protecting approximately 4,000 homes from an overtopped floodwall along the Red River. (U.S. Army National Guard photo by Spc. Joshua Barnett/Released)