In places torn by war, it's not only the Mirage Country experiencing conflict. Battles are also fiercely unfolding along the real line of control between the Elves and the Dwarves.
The Elf Air Force has introduced a highly formidable fighter jet. The technology for this aircraft originates from the Great Tang Empire, but the Dwarves have no desire to strip away this final layer of subterfuge.
This world is inhabited by more than just the human race, and thus various types of steel helmets exist. The steel helmets used by the Elves are their own adaptations, with two openings designed on the sides of the M35 steel helmet.
Their ears can extend through these openings, ensuring comfort while allowing them to maintain their sense of hearing on the battlefield.
However, for their race, it is regrettable that they won't be able to use the noise-canceling devices that will gradually become widespread in the future.