Mistress Of The Evil Forest - Interlude 3: The human goddess.

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.

Sanctora has known peace for generations—too long, perhaps.Built upon ancient ideals and ruled by a council bound to tradition, the kingdom believes itself untouchable. But beyond its tranquil borders, something has awakened. Whispers of vanished heroes, creatures long thought extinct, and shadows that no longer sleep begin to creep back into the land.Liora never wanted to be a hero. Orphaned young and shaped by loss, all she’s ever known is survival base on love and kindness. But when a brutal invasion exposes the kingdom’s deepest vulnerability, she’s thrust into the heart of a battle far greater than herself. Her light-element magic—once dismissed as minor and passive—may be the key to a new era of power.As Sanctora struggles to adapt, Liora must decide whether to follow the path laid out by those before her… or blaze a new one through fire, blood, and truth.Epic, emotional, and filled with slow-burning revelations, Ancient Beast Summoner is a story of legacy, buried power, and the girl who just might change everything.

Three years ago, when Sovereign Union disbanded, gaming genius Mo Bei laid low and went into seclusion.

Three years later, she returns with a concealed name, disguised as a man.

Despite being scorned and loathed, she ultimately reascends to the thone, causing a sensation in the entire nation!

Handsome but aloof, pursued by countless fans, he was the famous King of the eSports scene.

Dark Flares’ Captain, who was known for his looks, was even more famous for his ambiguous playing style.

*

When she first joined the team, he told her, “Know your place. Do not try to have inordinate ambitions.”

Subsequently, when her identity was exposed, he looked up from his seat at the table and stood up gradually. “Are you thinking of deserting me after marrying me in the game? Hmm?”

Sequel to National School Prince Is A Girl! Mo Bei is the disciple of NSPG’s Almighty Qin. Join him as he too becomes one!

The celestial celestial beings who lived for more than 100,000 years were born and reborn in a small monk in a human world.
His motto: “It’s not as good as a medicinal medicine for ten years of hard work.” “Even if you practice a copper-iron bone, it’s not enough for my soldier’s attack.”

- Description from Novelupdates