In the second year of Yonglu, on the 18th day of the seventh month. The 6,000 troops led by Nagano Yoshimasa and Kohata Keitasa encountered the 13,000 Takeda Army led by Takeda Nobushige in Oda Ihara, Saku-gun, Kita-Shinano. The two armies then set up their own positions here.

Oda Ihara, in this place, many of the retainers of the Uesugi family in Yamauchi are buried here. Once, Uesugi Kenmasa rescued Kasahara Kiyoshige, the lord of Shiga Castle who belonged to the Uesugi family in Yamauchi, and broke off relations with the Takeda family. Uesugi Kenmasa sent an army of 20,000 led by generals Kurakano, Fukaya, Yasunaka, Wada, Gokan, and Ohu to the aid of Kasawara Kiyoshige.

Although, Nagano Yoshimasa persuaded Uesugi Kenmasa more than once before the 20,000 Uesugi troops left Saku-gun, and said, "This is a meaningless battle, and your enemy is Hojo Shiyasu, what is the point of being an enemy of the Takeda family at this moment?" 'Persuade. However, at the instigation of some of his ministers, Uesugi Kenmasa was still determined to go to war with the Takeda family.

Since the territory of Kasawara Kiyoshige, the lord of Shiga Castle, borders Ueno Province, the Uesugi family in Yamauchi can provide support to Kasawara Kiyoshige through Usui Ice Cards.

However, the army of the Yamauchi Uesugi clan entered Kitashinano Saku-gun through the Usui Ice Card, and was attacked by a special team composed of Itagaki Nobukata, Ganli Torayasu, and Oyamada Yashiro (Oyamada Nobuyu's brother) sent by Takeda Shingen. The Takeda Army inflicted heavy losses on the Uesugi Army in Yamauchi at Odai Hara, and won more than 10 generals and more than 3,000 Ashigaru miscellaneous soldiers.

Due to the defeat of the Yamauchi Uesugi family in the Battle of Odaihara, the decline of the Yamauchi Uesugi family was deepened. When the Hojo Army invaded Ueno, none of the retainers of the Uesugi clan or the countrymen of Ueno dared to take in Uesugi Kenmasa.

Takeda Nobuyoshi had too many commanders, which led to the slow deployment of the formations of each department. In order to prevent the Takeda family's relatives and retainers from suffering heavy losses in the battle with the Nagano army, he placed the foreign foreign lords of Suruga and Enoe and the Shinano ancestors at the forefront of the Takeda army.

Nagano knew very well that Nobuyoshi Takeda would not miss the opportunity to defeat him, and that Takeda was more than twice as large as his side. Rather than wasting time to be beaten passively, it is better to take the initiative to attack yourself, taking advantage of the fact that the Takeda army's position has not yet been arranged, and attacking in one fell swoop, it may get twice the result with half the effort.

In this way, Nagano Yemasa decided to strike first, and he made a loud appeal to the whole army: "The time has come to avenge the soldiers of the Uesugi family who died in the battle of Oda Ihara!" The old man has regretted that he has not been able to walk with the samurai who have been sleeping here for a long time, so let the Takeda Army see the power of the Shangzhou samurai today! ”

"Oh!"

Immediately, under the command of Nagano Yemasa, the whole army of the Nagano Army rushed towards the Takeda Army's main formation with a scream of killing, like a landslide, and marched forward bravely. During the assault of the Nagano Army, the troops were divided into two directions, left and right, and attacked the Takeda Army in a pincer shape.

Nagano Yoshimasa's fierce generals 'Ueno Sixteen Spears' Daido Temple Nobukata, Fujii Tomotada, Shirakawa Mitsukatsu, Kishi Nobuho, Wada Hyobe and other generals have taken the lead. The brave generals under Kohata Keitada, Kohata Mikawa Mamoru (Kohata Keitada's same clan), Yoshizaki Kakubei, Asagi Minbu, Matsumoto Dingyoshi and other generals were also not far behind Ueno's sixteen guns.

The first formation of the Takeda army was composed of Amano Keitai, the lord of Toe Inui Castle, and Fuji Nobutada, the lord of Suruga Omiya Castle, and each of them led 500 troops to set up a formation on the plain. The second formation of the Takeda Army was composed of Amano Torakei, the lord of Tooe Sasa Mine Castle, and Osawa Kisang, the lord of Toe Horie Castle, and the two of them also led 500 troops each to set up a formation on the edge of a paddy field. The third formation was composed of the Takeda family's Shinano ancestors, and its chief general was Yatsu Gennao, a member of the Takeda family's kinship. The last and fourth formations are the main formation of the Takeda Army, which is composed of Takeda Nobuyoshi, Takeda Nobuyoshi, Kawabu Nobushimi, Murosumi Koden, Katsuyama Clan Moto, and other clansmen, as well as genealogy retainers.

Believing that the Takeda army had a high chance of winning this battle, Takeda Nobuyhiro laid out a simple four-stage formation, and placed the servant armies of the countrymen lords of Suruga and Enoe and the Shinano ancestors in front of the Takeda army. On the one hand, Takeda Shinshihiro did this to reduce the loss of interests of the Takeda family's relatives and genealogical retainers, and on the other hand, it could also allow the foreign lord to lose his strength after fighting with other daimyos, which can be said to be a multiplicity.

However, as the tide of the war developed, it did not develop as Takeda had expected.

As the Nagano army quickly approached the Takeda army, the two divisions of Amano Keitai and Fuji Nobutada immediately confronted the Nagano army in the traditional way of joint combat, killing and wounding the Nagano army with bows and arrows.

With the Takeda army firing thousands of arrows, the Nagano army was not afraid. Although some people fell down from time to time on the way to charge, the others gritted their teeth and advanced without hesitation. Soon, the Nagano army broke through into the lead of the Takeda army.

Nagano Yoshimasa's almost unconscionable tactics actually shook the Takeda Army's Amano Keitai and Fuji Nobutada's two divisions. Subsequently, Amano Keitai and Fuji Nobutada were quickly defeated by Nagano Yemasa and Kohata Keitada, and it can be said that they collapsed at the touch of a button.

As Amano Keiyasu and Fuji Nobutada were defeated by the Nagano Army, a large number of their two divisions fled into the military formations of the second formation, Osawa Keisho and Amano Torakei, and immediately the two divisions of Osawa Kixiang and Amano Toraki became chaotic. Amano Toraki and Osawa Kixiang couldn't stop it at all, and after the Nagano army attacked, the two were about to collapse at the touch of a button.

Because the Takeda army was defeated twice in succession, the Shinano pioneers in the third formation were scattered by a large number of first and second formations before they could figure out what was happening in front of them, and fell into chaos. As a member of the Takeda family, Yatsu Motonao was so angry that the Shinano ancestors insisted on patience. However, the defeat is no longer something that Yatsu Motonao can contain. Nagano and Kohata Keitasa used a pincer offensive all the way into the third formation of the Takeda Army.

When Takeda Nobuyoshi, who was in the main formation, got the foreign lord of the first and second formations and retreated, he was surprised and almost fell off his horse. Takeda Nobuyoshi didn't expect that the foreign lords of Suruga and Enoe would fight like this, so they deployed 2,000 troops in the first and second formations, and even if they were defeated, they would not be able to defeat both formations in a quarter of an hour. It also allowed the Nagano army to quickly attack the third formation composed of Shinano's ancestors, and the third formation was still on the verge of defeat at the moment.

In order to turn the tide of the battle, Takeda Nobuyoshi had no choice but to order Kato Nobuni and Hinata Masanari to immediately lead their headquarters to launch a surprise attack on the Nagano army.

As soon as the Nagano Army and the Takeda Army Kato Nobuni and Hinata Masanari came into contact, the Nagano Army's overwhelming offensive stopped, as if they had suddenly touched a hard stone in front.

Just when the horseback warriors of the Nagano Army wanted to use the advantage of their horses to break through the formation of the Takeda Army, the Takeda Army was not to be outdone, and immediately stabbed the horse's belly and chest with spears or knives. The horses were frightened and stood up or kicked horizontally, which disrupted the front line of the Nagano army. Nagano felt very angry, and the war horse under his crotch seemed to feel the emotions of his master, and kept spinning in place.

At this moment, a samurai dressed in black lacquer maru and holding a thick, wide and long sword rushed towards the Takeda army alone and quickly, slashing in all directions with a swing, leaving a piece of flesh and blood flying everywhere in his path, with stumps and broken arms. In front of him, whether it was a samurai in the Takeda army, or a sashigaru or miscellaneous soldier, they were all split in half or shocked by this person's terrifying arm force. Almost instantly, he opened a gap in front of the Takeda Army's dense spear array with the strength of one person.

Kato Nobukuni and Hinata Masanari in the back were dumbfounded when they saw this, and the samurai and ashigaru under their command were even more dead-faced.

At this time, Takeda Nobuyoshi divided part of the forces of his own camp to form a special team, intending to flank the Nagano army. After all, if the battle is like this, if you lose, how will you face your brother? How to establish a foothold in the Takeda family in the future?

In this way, Takeda Nobuhiro sent Yokota Tsunamatsu and Ganli Masadada, and asked them to lead 2,000 troops to raid the flank of the Nagano army.

However, Takeda Nobuyo's every move was watched by Nagano Yemasa. Since the Nagano Army came from the east, it was located on the highlands east of Odaihara, so it was possible to see the movement of the Takeda Army to the west. On the contrary, the Takeda Army could not grasp the movements of the Nagano Army in real time.

Nagano Yoshimasa immediately made the plan and ordered Kohata Keitasa to attack the left flank of the Takeda army's main camp.

The left flank of the Takeda Army's main formation deployed Takeda Nobuyoshi and Katsuyama Clan, but their strength was only 1,000 people, and most of them were old, weak, sick and disabled, and the main force had to garrison Hedong, where could there be elite soldiers to pull out?