In addition to learning from Europe politically and economically, Japan has also begun to form an alliance with Europe militarily. At that time, Germany claimed to have the strongest army in Europe, so Japan mainly learned military from Germany. In addition to tactics, strategies, weapons and equipment, the Japanese even copied the living habits of German soldiers. If the Japanese have beards, they learned them from the Germans. Then why do Germans have such ugly moustaches? This is related to their national culture.
As we all know, Germans are mainly descendants of Germans. Because their ancestors often fought against the Romans, they were regarded as barbarians by the Romans. In order to show their bravery, most Germans have wild beards. The Romans thought they were sloppy and unsanitary. Later, the Germans defeated the Romans and made them feel that men should be like men. Among them, the beard can best reflect masculinity.
Of course, in different historical periods, the types of beards that German people like are also different. For example, the German emperor William I had a seal beard, while his grandson William II had a horn beard. As the saying goes, "Do something above and do something below". If the rulers have such hobbies, the people will naturally imitate them. So before the 20th century, many men in Germany had fluffy beards. But after the first world war, German soldiers suffered from beards.
It turned out that in order to win, Germany took the lead in using poison gas in World War I, effectively killing allied troops. In order to prevent accidental injury to their soldiers, the Germans developed gas masks, but the beards of German soldiers made the gas masks ineffective. In order to reduce casualties, the Germans decided to let the soldiers shave off their beards and leave only a handful of square beards under their noses. This will not only facilitate the cleaning of the beard, but also prevent the beard from falling into the rice when eating. So this kind of beard is also called "sanitary beard". Most importantly, this moustache makes the gas mask more rigorous.
In order to set an example, Hitler took the lead in growing a sanitary beard. Later, the comedian Chaplin began to grow this moustache for performance. The Japanese think sanitary beard is so practical and fashionable that they begin to promote it all over the country. Later, Germany and Japan were defeated, and this sanitary beard was gradually abandoned by them.