The 221st Engineer Group is a military unit under the United States Army Corps of Engineers. It falls within the Army National Guard, specifically assigned to the North Carolina National Guard. Their primary role involves engineering and technical support, including construction, maintenance, and improvement of roads, airfields, water facilities, bridges, and other essential infrastructure. This unit is vital during both peacetime and war, providing engineering solutions for military operations and humanitarian missions. Its composition includes various engineer units, such as combat, general, aviation, and dive detachments. The 221st Engineer Group's mission is to provide prompt, professional, and flexible engineering support to domestic and overseas contingency operations in order to enable successful mission completion.