The Eye of the Moon plan.
A large-scale Genjutsu where everyone would live in an ideal world where death and war did not exist.
To achieve this Genjutsu, Madara needs to capture all the tailed beasts and seal their chakra in the statue of the outer path to resurrect the Ten-Tails and become its Jinchuriki.
As the Ten-Tails' Jinchuriki, Madara would obtain the power of the Sage of Six Paths and no one would be his opponent.
Not even Hashirama or Gin Uzumaki would be his opponents, and that is why he never set his sights on the patriarch of the Uzumaki clan.
Of course, he wasn't going to leave anything to chance and ordered several Zetsus to keep an eye on the redhead clan so they wouldn't interfere with his plans now or in the future.
Whether while he is sleeping or when he dies and awaits his resurrection.
For now, his plans were to choose a successor and be resurrected in the future.
And for this plan, the White Zetsus were also very important.
But when he learned that the White Zetsu had disappeared and had probably been captured by the Uzumaki clan, Madara could no longer rest easy and has not slept since.
Previously, the White Zetsu had no way to reach the Uzumaki country due to its location in the middle of the sea, so they quickly traveled to the 3 cities that had been suddenly taken over by the Uzumaki clan.
Madara knew that and waited for their news, without worrying about anything.
After all, the White Zetsu had never been discovered, and Madara didn't expect it to change suddenly.
But something unexpected happened.
The White Zetsus who stealthily entered those 3 cities lost contact with the mental network where all White Zetsus can communicate, surprising him and the other White Zetsus.
And ever since, he had been awake and receiving report after report from the White Zetsu who spy on the various villages and countries.
Since he now saw the Uzumaki clan as a thorn in his side, Madara hoped to learn about the progress of the 3 countries and villages for his upcoming war with the redheads.
It was a surprise to learn the secrets of the monks of the different temples, and he also began to doubt them.
But because he wanted the Uzumaki clan eliminated first, Madara kept a close eye on the other plans and learned about their difficulties in getting past the redheads' barriers.
He immediately thought of something, but the White Zetsu weren't smart enough to follow the new orders to the letter.
Therefore, his hands moved quickly forming some hand seals, circulating Yin-Yang release chakra and the help of the outer path statue chakra, to create a new, smarter subordinate.
Behind Madara, the statue on the outer path, which usually remained still, began to move as a tentacle emerged from its body.
The tentacle expanded, from the base where it originated on the body of the statue on the outer path to the tip where it opened and expelled a black being.
"You will be called Black Zetsu and you will be my loyal subordinate," said Madara, and the creature called Black Zetsu knelt down while lowering its head.
Shortly after, Black Zetsu left the base following Madara's orders and headed towards the Leaf Village, with a smile on his previously expressionless face.
What Madara didn't know was that something else had taken the place of his creation.
The Third Son of Otsutsuki Kaguya.
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Days later, the high command of the Sand Village, the Rock Village, and the Cloud Village received a very unexpected gift, but one that was very important for their current situations.
The high-level seals necessary to safely create a Jinchuriki.
"Are they real?" asked the Third Kazekage, and Ebizo and his sister nodded.
"To our knowledge, these seals are strong enough to contain a tailed beast and drastically reduce a person's resistance to becoming a Jinchuriki."
"Logically, we have to do the necessary tests."
"But we estimate that we will be able to obtain results in a few months and we will be able to modify the seals that keep Shukaku sealed in Bunpuku," Ebizo said, to the delight of the Third Kazekage.
Unlike the seals they currently possess, these new seals would allow the Jinchuriki to more easily harness the chakra of the tailed beasts.
Therefore, they would soon obtain a Jinchuriki with a high level of combat and who would not lose control so easily.
After dismissing the two brothers to continue studying the seals they had suddenly obtained, the Third Kazekage became lost in thought about how easily and conveniently his spies in the Leaf Village were able to acquire these seals.
He wasn't the only one.
The Third Tsuchikage and the Third Raikage also received from their spies in the Leaf Village the scrolls containing the seals necessary for the safe creation of a Jinchuriki.
After all, only Konoha and the Uzumaki clan had these seals in their possession, and with the latter they haven't had the luck to infiltrate their spies.
Although they wanted to let it go and concentrate on dealing with the Uzumaki clan, something told them that something was wrong.
And weeks later they were more than sure of that when they learned that the other 2 villages had obtained the same.
Simultaneously, the 3 Kages looked in the direction of the Leaf Village and smiled.
The most important reason they had attacked the Uzumaki clan was for these important seals, but they were unable to obtain them due to the appearance of Gin Uzumaki.
And not only that, but they also suffered a great loss in the attack.
But now they suddenly obtained these seals, and from none other than the 'allies' of the redhead clan.
Although they could no longer be called allies.
Since the Leaf Village failed to appear to help the Uzumaki clan, the two villages had kept their distance, and it didn't seem like anything was going to change anytime soon.
And with the suspicious way in which they had just obtained these seals, it seemed that the Leaf Village knew the mistake they had made and were afraid of the redheads' retaliation when this war was over.
Shrugging their shoulders, the three continued with preparations for the next conflict.
Although they can only begin using the Jinchuriki several months later, it is valuable time for the villages to make their preparations.
After all, a war doesn't end very quickly and a large amount of resources are spent.
It was fortunate that the Daimyo were heavily involved in this war, and they were able to secure a larger budget to gather resources.
What about the 3 cities that were under the control of the Uzumaki clan?
For now, these 3 cities will remain as they are while everyone prepares for a joint attack in the future.
Regarding the knowledge that Konoha 'helped' them?
The 3 Kages weren't going to mention it so easily until they could gain some advantage from the Leaf Village.
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The three villages began trying to master the new seals, so they soon had to work with the Jinchurikis.
And as high-level observation targets, the Leaf Village soon learned of their movements.
"WHAT THE HELL WERE YOU THINKING, DANZO?!" the Third Hokage shouted as Danzo Shimura entered his office and activated the security seals so that no one could hear them.
Hiruzen was furious.
His spies in the 3 large villages sent back information that alarmed him and made him furious.
And when he thought about who could be behind this, only the name of his old friend came to mind, and he sent his ANBU to bring him to his office immediately.
"What do you mean, Hiruzen?"
"I don't know what you're talking about," Danzo said.
Hidden inside, Danzo was nervous, wondering if Hiruzen had found out about any of his actions and brought him here to ask for an explanation.
He was already prepared to flee and use all the Root ninjas he had ordered to wait near the Hokage Tower as a shield in case Hiruzen attacked him. But it seemed unnecessary when his friend handed him a report, and he sighed with relief that he hadn't done this himself.
"I didn't do this"
"You're aiming at the wrong person," Danzo said.
Although he was surprised by the implications of this, his first priority was to escape the wrath of his old friend.
"IF IT'S NOT YOU, THEN WHO IS IT!" Hiruzen shouted as his chakra filled the entire room and tested the seals protecting the Hokage's office.