King Of War: Starting with Arms Dealer - Chapter 993 - 885: Upgrading Oneself

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

“I am the rot in your foundation. I will crawl back from hell and bury this world.”Those were Red’s final words as his classmates—the people he once sought validation from—watched him dissolve. They stole his life force to fuel their own ascensions, becoming Paladins, Sages, and Kings. They threw his empty husk into the Abyss, satisfied the 'Terrorist's Son' was finally gone.But death was not the end. While his body lay broken in the abyss, his soul drifted to the sanctuary of a Forgotten God.Awakening the forbidden SSS-Rank Talent [Exponential Divinity - 100x Growth], Red realizes that in this world, power isn't given—it's built. He doesn't need heroes; he needs monsters.From the chitin of hyper-evolved insects to dragons, from eldritch horrors to the nightmares sleeping in the dark, he begins to construct a civilization that defies the natural order. Under his hand, the weak do not just survive—they evolve into calamities.The Heroes are leveling up in their golden towers. The Gods are watching from their thrones.But in the shadows, Red’s Strongest Civilization is already preparing for war.[Betrayed and sacrificed, I awakened an SSS-Rank Talent. While others struggle to build a village, my civilization grows 100x faster.]

Once reborn, the most miserable real daughter Xia Zhi caught the fake daughter and her fiancé in bed!

The first sword in rebirth is to kill the person who betrayed your heart first.

Watch her golden cicada shed its shell and go to the frontier to let the birds fly high in the sky.

Summer Solstice: From the first time I met Zhou Zhengan on the train and handed me a steamed bun, this person has been haunting me. He appears around me every time I eat, and he is attentive to picking up food for me and giving me food. Fill with meat.

You have to give yourself a taste of any good thing first.

While Xia Zhi was enjoying the meal, he warned himself that this person was a diligent person who had nothing to do and was either a traitor or a thief.

Xia Zhi, who finally saw the world, became Zhou Zhengan’s wife.

Zhou Zhengan: Zhou Zhengan, who has had no sense of taste since childhood, met a girl on the train who was drooling at the steamed bun in her hand. The kind girl broke off half of the steamed bun she gave him. From then on, Zhou Zhengan opened up a new world of taste.

Every time he eats, he can taste the food that Xia Zhi has tasted.

He was hanging around Xia Zhi, why did Xia Zhi want to marry someone?

Who dares to snatch my wife?

- Description from novelbuddy

Oliver West never expected his quiet life to turn into a nightmare. The boy who once shared secrets and summer adventures with him has become someone he doesn’t recognize. Keiran Morrison - tall, dangerous, and devastatingly handsome - now uses that same intensity that once made Oliver’s heart flutter to terrorize him instead.Every day at Riverside High is a battle for survival. Every corner could hide a new humiliation. Every moment of peace is just the calm before Keiran’s next storm.But why does Keiran’s hatred burn so bright? What happened to turn childhood love into adult cruelty? And why, despite everything, does Oliver’s heart still race when Keiran gets close - even when he’s terrified?Some mistakes can’t be forgiven. Some wounds run too deep to heal.But sometimes the line between love and hate is thinner than you think.