Army Corps of Engineers USACE Korps der Ingenieure der Armee Army Corps of Engineers Cuerpo de Ingenieros del Ejército Cuerpo de Ingenieros del Ejército Corps des ingénieurs de l'armée גוף ההנדסאים של צבא ארצות הברית आर्मी कॉर्प्स ऑफ इंजीनियर्स 陸軍工兵隊 Corpo de Engenheiros do Exército 陆军工程兵团 USACE Army Corps of Engineers The United States Army Corps of Engineers (USACE) is a U.S. federal agency under the Department of Defense and a major Army command made up of some 37,000 civilian and military personnel, making it one of the world's largest public engineering, design, and construction management agencies.