While soldiers in battle have long worn headgear for protection, helmets issued during World War II were never meant to be bulletproof. How come?

The helmet is also olive green with a decal of the division’s iconic shoulder insignia, a lightning bolt superimposed on a taro leaf, ... In 2012, Army saluted its World War II heritage, ...

Your great-grandfather’s World War I helmet that’s stuffed in the back of the closet could be just as effective at preventing brain injury from some blasts as a modern-day military helmet, a ...