WARNING: The following contains spoilers for Boruto: Naruto Next Generations Episode 174, "The Revival of the Divine Tree," now streaming on Crunchyroll.
When Kaguya fell and the Fourth Great Shinobi World War ended, the ninja world was changed forever. Naruto and Sasuke mended fences, inspiring the alliance to chart a course toward a more welcoming and diverse future. Things got progressive as everyone worked hand-in-hand to usher in this new era of peace, with the Boruto series picking up as Naruto became Konoha's Hokage.
However, as the Naruto generation leads juniors such as Boruto, Sarada and Mitsuki forward, the latest Boruto episode shows that there's still deadly fallout from that war.
There were so many obstacles in that aforementioned battle, with warped scientists like Orochimaru and Kabuto getting involved, as well as the Akatsuki being manipulated as terrorists, that it's easy to see lasting consequences. Earlier in Boruto, the White Zetsu returned, which led to Boruto and Konohamaru trying to kill the entity again, confirming the war has ripple effects. Thanks to Victor, we just found out this allowed him to create his God Tree.
Victor started his medical company to create limbs and try to find immortality as he was a medical chief that saw numerous soldiers become injured or die in the field. He was also bitter that smaller villages would not get the same benefits of the alliance, which is why he's using the independent Land of Valleys to improve things. It's all part of Kara's experiments and lab work.
He has a point, too, in that people are left to suffer in the Naruto world -- throwing nods to real-world issues wherein everything from weapons to treasures are found on the battlefields by the people who live in wartorn areas. Victor confirms he scoured the landscape and got splinters of the God Tree that Kaguya was using for her Infinite Tsukuyomi, which would have trapped people in a dream, sucked their chakra dry and given her the fruit of the gods to eat. This allowed him to clone the tree, which is now attacking Konohamaru and Mugino, while getting ready to suck his staff of their chakra so he and Deepa can eat the fruit.
Apart from this tree, the ornery old man could also have gotten his hands on White Zetsu shards the same way he did with the Hashirama Cell. This might open the pathway for Kaguya to return and strafe the land. He could also have gotten blood and DNA from other key ninja, like Naruto, Sasuke, Obito, Madara or even Kaguya herself, while recreating a Ten-Tails. We don't know how deep his network ran after all. He could clone his own versions of them the way Orochimaru and the Kabuto of old would have done.
If that's the case, Victor's clones may even be able to pull out the Tailed Beasts and control them. This isn't far-fetched: Amado cloned Jiraiya after he was dumped at the bottom of the ocean by the Akatsuki, creating Koji Kashin. Only time will tell but once the Konoha ninja are done with the God Tree, they need to dive further into Victor's vault. His plans aren't so insipid as Deepa made them out to be.