The term 'Military Head Gear' refers to the protective equipment worn by military personnel. Two of the most common pieces of head gear are the KEPI, a four-letter word, and the HELMET, a six-letter word. The KEPI is a cap with a flat circular top and a peak, usually made of cloth or leather, and is typically worn by military personnel. The HELMET is a more comprehensive form of head protection, usually made of metal or plastic, and is designed to protect the wearer from shrapnel, bullets, and other forms of physical harm.