French WW2 helmet M26 Adrian France original

The Adrian helmet (French: Casque Adrian) was an influential design of combat helmet originally produced for the French Army during the First World War. Its original version, the M15, was the first standard helmet of the French Army and was designed when millions of French troops were engaged in trench warfare, and head wounds from the falling shrapnel generated by indirect fire became a common cause of battlefield casualties. Introduced in 1915, it was the first modern steel helmet[1][2] and it served as the basic helmet for many armies well into the 1930s. Originally issued to infantry soldiers, in modified form they were also issued to cavalry and tank crews. A subsequent version, the M26, was used during World War II.