United States Army Corps of Engineers (DA) (USACE)
HQ: Washington, D.C.
Other locations: Cincinnati, OH; Fort Hamilton, Brooklyn, NY; Portland, OR; Omaha, NE; Atlanta, GA; San Francisco, CA; Dallas, TX; Vicksburg, MS; and Fort Shafter, HI
Mission: To provide engineering, construction management, and environmental services in peace and war. The U.S. Army Corps of Engineers’ civil works program includes flood damage reduction, hydropower and environmental regulation, and its military program includes construction of U.S. Army and Air Force facilities.