From camouflage nets to chalk markings and rare attachments, WWII helmets often carried more than just protection. In this video, we break down the strange-looking items you might spot on soldier ...

This combat helmet was used by NBC photographer Greg Mathieson in 2003, during the beginning of the ground war in Iraq. It is a Personnel Armor System Ground Troops (PASGT) helmet, also known as a ...

It was also useful against Viet Cong bullets and shrapnel. (U.S. Army/Spc. Frank R. Sullivan III) So those unclasped chin straps dangling from helmets look so cool in both World War II and Vietnam ...