What is m1918 helmet?

The M1918 helmet, also known as the Brodie helmet, was a helmet that was used by the United States during World War I. It was named after its designer, John Leopold Brodie. The helmet was made of steel, with a flat top and a brim that extended downward to protect the wearer's neck and ears from shrapnel and debris. It had a leather chinstrap that was secured with a buckle. The helmet was initially painted in a light khaki color, but this was changed to olive drab later in the war. The M1918 helmet was widely used by American troops, and it became an iconic symbol of World War I.