The first Nobunaga siege network was terminated by the peace with the Asai and Asakura clan and the burning of Enryakuji Temple. However, Nobunaga's difficulties are not over yet. The anti-Nobunaga forces remained in force, most of them looking for the opportunity to overthrow Nobunaga.
Nobunaga Siege Network by Yoshiaki Ashikaga
Meanwhile, it was 15th Shogun Yoshiaki Ashikaga who was frustrated with Nobunaga. was. Yoshiaki became the 15th shogun with the support of Nobunaga, but was dissatisfied with the fact that Nobunaga had the real power of the shogunate.
From that dissatisfaction, Yoshiaki Ashikaga Is secretly a gathering of anti-Nobunaga forces I will try.
Miyoshi Yoshitsugu was in tune with Yoshitsugu's movement. And his vassal Matsunaga Hisahide was.
1572, Miyoshi Yoshitsugu and Matsunaga Hisahide Akitaka Hatakeyama of Kawachi who rebels against Nobunaga and follows Nobunaga Attack. Miyoshi Yoshitsugu welcomed his sister to Yoshiaki Ashikaga in the Seishitsu room. He decided to take control of the shogunate on behalf of Nobunaga.
In response to this news, Nobunaga was Nobumori Sakuma and Katsuie Shibata . 20,000 soldiers will be entrusted to Yamato Province, the residence of Kawachi and Matsunaga Hisahide.
Meanwhile, as I wrote in the article about the expulsion of Ashikaga Yoshiaki, Nobunaga points out a sentence that complains to Shogun Yoshiaki. This series of Miyoshi and Matsunaga's secession is instigated by Yoshiaki Nobunaga was reading that.
Takeda Shingen's Joraku Operation
Furthermore, Yoshiaki used his position as a shogun to Shingen Takeda of Kai. Succeeded in adding to the siege. Upon receiving the letter, Shingen Takeda immediately invaded Totomi with 25,000 soldiers and defeated Nobunaga's ally Tokugawa Ieyasu Battle of Mikatagahara . I will beat it to the fullest.
Shingen Takeda and Nobunaga Oda Has formed an alliance before. Attacking Tokugawa, who also has an alliance, is a real abolition of the alliance. Nobunaga is angry at this betrayal of Shingen in a letter addressed to Kenshin Uesugi.
"Never forget this grudge, blame Shingen for invading the territory of the Tokugawa ally, and do not form a friendship with Takeda Eikyu in the future. 』
It seems that it is written.
After learning that Shingen had won the battle with Tokugawa, Yoshiaki openly turned against Nobunaga. He would have stepped on that he could completely defeat Nobunaga.
As a result, the anti-Nobunaga forces ...
Yoshiaki Ashikaga in Kyoto Kai Takeda Shingen ・ Yoshikage Asakura in Echizen ・ Azai Nagamasa of Kita Omi
Miyoshi Yoshitsugu in Kawachi Yamato Matsunaga Hisahide Ikko-ikki for Ise
* I borrowed images from the Sengoku period power map and the trend blogs of each daimyo.
The collapse of Nobunaga's siege network due to the withdrawal of Shingen Takeda
Nobunaga is four-sided song It will be in the state of.
The fact that Yoshiaki Ashikaga rebelled openly is a big blow to Nobunaga.
Nobunaga's power base is the Muromachi Shogunate Because it was.
A cause that holds power only if you protect Yoshiaki So, if Nobunaga is cut off from that person, Nobunaga will be for the cause . Will disappear. On the other hand, due to this separation, Nobunaga forces Against Nobunaga's subjugation cause is born It will be.
However, Yoshiaki Ashikaga's speculation did not go well, and in April 1573, Kai Takeda Shingen died . I will do it.
This left the biggest threat, but this time Yoshiaki himself will raise soldiers. Nobunaga expels Shogun Yoshiaki from Kyo in this series of battles of Uji. As a result, the Muromachi Shogunate is virtually destroyed . To do.
This expulsion of Yoshiaki will upset the anti-Nobunaga forces. Nobunaga who did not miss it was Azai Nagamasa Attack Odani Castle in Masa. Immediately Nagamasa requests Asakura for reinforcements. However, Nobunaga surprised the Asakura army who had turned his soldiers into Omi and attacked Asakura Yoshikage . Succeed in defeating.
After that, Azai Nagamasa Succeeded in destroying the Azai clan by attacking Odani Castle.
In addition, Nobunaga ordered Nobumori Sakuma to Yoshitsugu Miyoshi . Attack. In this battle, he drives Yoshitsugu into his own suicide and succeeds in eradicating the Miyoshi clan's torrent. In addition, his vassal Yamato's Matsunaga Hisahide Hisahide who attacked and accepted the surrender recommendation opens Tamon Castle.
Nobunaga, who stabilized Kinai for the time being, was 1574 . Ikko-ikki in Ise with a large army of 70,000 .. 1575 Surrender the rest of the Miyoshi clan Let me be a vassal.
1576 , Katsuyori Takeda who became the head of the family after Shingen's death Surrounded by Nagashino Castle In order to save him, he went to Mikawa with Tokugawa. And Battle of Nagashino Defeat Takeda Katsuyori It succeeds in completely eliminating the Takeda family, which was his greatest threat.
This has plagued Nobunaga for many years, Asakura / Asai / Takeda Nobunaga's siege network in the second phase will collapse as a result of the dropout. After this, in the third period, Honganji Will play a central role in causing Nobunaga to suffer.