Weapon debris refers to the remains left behind after a weapon has been used or destroyed. There are various types of weapon debris, including shell casings, shrapnel, bullet fragments and other pieces of metal or plastic. Synonyms for weapon debris include munitions fragments, ordnance debris, explosive remnants of war and military litter. These terms are commonly used by military personnel and explosive ordnance disposal specialists to describe the hazardous materials they encounter in conflict zones and training areas. Proper cleanup and disposal of weapon debris is essential to prevent injury, environmental damage and further conflict.