Although the Japanese Warring States period fought very fiercely, the armies of various forces were not many, and the number of daimyo with an army of more than 50,000 was definitely not more than ten, and it was extremely difficult to organize an elite army in the case of extremely scarce numbers; so it was rare to hear of any very famous army in Japan during the Warring States period. But it is not completely absent, the Red Guard is a very famous elite unit in Japan during the Sengoku period.

The Red Guard is a cavalry unit, clad in red armor, using three-meter bamboo guns and small iron cannons, after unique training, the combat effectiveness is extremely strong; it moves like a ball of flames, so it is named the Red Guard. In addition, the four commanders of the Red Reserve Were all the top leading military generals at that time, so it was only natural that the Red Reserve Team became an elite unit; because of the fierce name of the Red Reserve Team, the commander of the Red Guard Team was also known as the "Red Ghost", so who were the real "Red Ghosts" of these four commanders?
First term: Iifu Huchang
Iida Tohisa was a powerful general of Takeda Shingen, a fearsome, brave, sophisticated, and reckless samurai known as the "Tiger of Kai", and Takeda Shingen not only recognized his abilities, but also trusted him so much that he made him the teacher of his sister-in-law Takeda Yoshinobu. One of Iato's most famous battles was to defend Uchiyama Castle, when Uesugi Kenshin and Murakami Yoshiaki led an 8,000-strong army to besiege Uchiyama Castle, only to be stopped by Iato toroshima with 800 men. However, he conspired with Takeda Yoshinobu to expel Takeda Shingen, and as a result, he was informed by his brother Yamagata Masaaki, and as a result, he was placed under house arrest and was urgently apologized.
Second term: Changjing, Shan County
Masaaki Yamagata was the younger brother of Iato toho- masamune, and after betraying his brother, he was given the surname Yamagata by Takeda Shingen, who inherited this Famous Kai Gate and became a major subject from then on. In fact, this Yamagata Aritomo is also a fierce general, no less brave than Iifu Tomohisa, but it is only no less than that, the strength and ability should still be slightly inferior, after all, Iato toho masashi is the founder of the Akabi, but he is to transform the Akabi into the Akabe riding team, which is not bad; this Yamagata Aritomo is famous for defeating Tokugawa Ieyasu during the Battle of Mikatahara, and later in the Battle of Nagasho, facing the combined forces of Oda Nobunaga and Tokugawa Ieyasu, who have an absolute superiority in strength, he did not flinch, and was shot and killed after defeating several armies in a row.
Third term: Naomasa I
Naomasa Ie should be regarded as half the founder of the Akabi team, because after the Takeda clan was destroyed by the joint efforts of Oda Nobunaga and Tokugawa Ieyasu, the Akabi team disappeared; later, Tokugawa Ieyasu felt the bravery of the Akabi team, so he asked the most trusted all-powerful general, Naomasa Ikai, to reorganize the Akabi team, but he did not expect that Itachi Naomasa was really successful. Since then, Ii Naomasa led the Akatsuki team to serve Tokugawa Ieyasu and became one of Tokugawa Ieyasu's most important troops; Toyotomi Hideyoshi tried to win Over Ii Naomasa, but did not succeed; because of Iti Naomasa, the suffering Ini family was later the most prominent political family in the Edo period.
4th appointment: Naotaka Ii
Ii Naotaka was the son of Ii Naomasa, and later Ii Naomasa handed over the Akabi team to him due to injury and other problems; the so-called Tiger Father no Dog, this I Naotaka was also extremely capable, but unfortunately, by the time he was in charge of the army, it had reached the last period of the Japanese Warring States, so he only participated in the Osaka Winter Front and the Osaka Summer Front that destroyed the Toyotomi clan, among which sanada Yukimura's plan was also hit during the Osaka Winter Front, causing more than 500 casualties; later in the Osaka Summer Front, he was called "The Red Bull of Ioi" because of his outstanding performance. Later, Naomasa I became the first shogun in Japanese history, the first minister of the Tokugawa lineage during the Tokugawa Iemitsu period, and a 350,000-stone daimyō.
In fact, Ibitomi Tiger Chang's nickname is "Kai's Fierce Tiger", Yamagata Masaaki does not seem to have a nickname, Ii Iyo Masamune is the owner of the "Red Ghost" nickname, in addition to his "Red Night Fork", "Red Ghost Ie" and other nicknames, and Ioi Naoto's nickname is "Night Fork Sweeping", "Jingyi's Red Bull"; but although Iei Naoko is the "Red Ghost" of the Masae Bajing, but the real ability is still weaker than Ibito Tiger Chang and Yamagata Changjing, Ibifu Tiger Chang is the founder of the Red Reserve Team, and the training methods of the Red Preparation Team are provided by Ibifu Tiger Chang Yamagata Changjing, on the other hand, created the strongest cavalry unit in the Japanese Sengoku, on a par with the elite infantry of The Genjin of Nagamasa. In fact, Sanada Yukimura's army is theoretically a red reserve.