Military weapons, ammunition, equipment, and materials, collectively known as munitions of war, lie at the bottom of rivers, lakes, and oceans across the country. The U.S. Army Corps of Engineers works to safely locate and remove the munitions, preventing aquatic and human environmental hazards. Two U.S. Army Engineer Research and Development Center (ERDC) engineers recently developed a patented technology that could significantly improve how those underwater munitions are detected and recovered.