"Ghost Endowment": "The crown of the bullet clouds is passed away, and the brown of the shawl is extended." ”
Hats are the clothing we wear on our heads in our daily lives, and they can play a role in decorating and protecting the head. Hats have a very long history in China, as early as the three generations of China' period, the hat costume has been invented and created. It's just that in ancient times, hats were not something that anyone could wear, but a reserved item for a fixed class of people.

Ancient hats and helmets
In China's ancient book "Interpretation of the Name" there is such a sentence: "Twenty adults, soldier crowns, shuren scarf", from this sentence can be seen that only those who are prominent scholars and doctors and above are eligible to wear hats, ordinary people can only wrap a layer of turban on their heads at most, this style of clothing, has been maintained for thousands of years, until modern times, hats began to spread among ordinary people.
However, when we watch some ancient TV dramas, we sometimes see soldiers fighting on the battlefield, often wearing hats on their heads, which is not contrary to the ancient clothing habits? In fact, the soldiers of ancient societies did not wear hats on their heads, but helmets. In the era of cold weapons, soldiers fighting on the battlefield is nothing more than the use of those traditional weapons, wearing helmets on their heads and wearing armor on their bodies to effectively protect their physical safety.
Modern military hats
However, with the passage of time, this helmet seems to have disappeared out of thin air, and when it comes to modern warfare, soldiers often wear not helmets, but military green military hats. This is because at the end of the Yuan Dynasty and the beginning of the Ming Dynasty, a new type of battlefield weapon appeared in China, that is, muskets. The musket, which is hundreds of years old, is very different from today's scale of destruction.
The initial musket shots were slow and low-precision, but one of its most lethal points was that the ammunition would explode when it was fired, and this indiscriminate scattering was often the main reason for the death of soldiers, and it was precisely because of the emergence of this new weapon that the helmets of the ancient period lost their original utility, and to resist this bullet fragment, a more sturdy iron or steel helmet was needed.
However, due to the limitation of productivity, it is difficult for us to mass-produce such military helmets, so in modern warfare, both Chinese soldiers and those Japanese soldiers are mostly wearing ordinary military hats. Although this kind of military hat is difficult to resist bullet fragments, it can sometimes produce miraculous effects, such as army green is convenient for soldiers to hide in the field, light weight is easy to carry, and so on.
What was the use of the two pieces of cloth on the Japanese hat during World War II? Unlike the military hats of our country or other countries, the appearance of the japanese soldiers' military hats is somewhat funny, looking like the hats worn by circus actors. And what kind of effect can it play?
Japanese soldier's "dog ear cap"
The first thing we need to understand is that such hats are not original to the Japanese, but originated in France. The French created this looking hat to prevent sunburn. As we all know, France has encroached on a large amount of African land in modern times, because it is close to the equator, the climate is hot, and the sunshine is strong, so the design of this hat with a curtain can effectively ensure that French soldiers are protected from the threat of sunshine.
During the Meiji Restoration, Japan copied many Western objects, including French military hats. However, when the Japanese introduced this military hat, they also made some improvements to it, that is, removed the front and back drapes, leaving only the left and right sides, so that when the two pieces of cloth were hanging down, they were like two dog ears.
The Reason why the Japanese wanted to remove the front and back sides was also for their reasons. In East Asia, the climate is far less hot than in Africa, so the front and back are equipped with draped cloth, which has little effect on preventing sunburn, and it is easy to block the soldiers' view, so why do they only retain the draped cloth on the left and right sides? It was because it saved the lives of 100,000 Japanese troops.
The presence of the draped cloth on the left and right sides is to disperse mosquitoes in tropical jungle areas. As we all know, the outbreak of many infectious diseases has a lot to do with these mosquitoes. Malaria, for example, is an infectious disease caused by mosquito bites. In wartime, malaria will spread in the army if you are not careful, according to statistics, many American soldiers have lost the ability to fight because of this infectious disease, while the Japanese army because of the wearing of this military hat, the prevalence rate is much smaller than that of the United States.
epilogue
It can be seen that although the Japanese soldiers sacrificed the appearance of the military hat, they really played a good anti-mosquito effect. In modern society, with the continuous development of productive forces, this military hat has gradually withdrawn from the stage of history, but we must remember that this small hat has also had such a profound impact on war.
Reference: Interpretation
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