Silent Crown - Chapter 766 - Entering the City

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.

The True Spirit Continent is an era of prodigies and monstrous talents vying for supremacy. Kings roar and can make stars fall, while emperors can cover the sky with a flip of their hand. A young man named Xiao Ye, born humble, receives ancient inheritance and thus becomes the pinnacle of martial arts. He sweeps across enemies, battling through the Nine Wilds with passionate vigor, igniting the Nine Heavens with battle fervor.On the invincible battlefield, where the blood of geniuses forms a sea and monstrosities' bones pile up like mountains, Xiao Ye advances step by step, ascending to the peak, defeating all who dare proclaim supremacy in the world.As warriors, we ought to rather break than bend, decisive and resolute in slaughter, unhesitant in vendettas, and annihilate all enemies in the world!

They say the greatest blessing is marrying the idol you always dreamed of.

But Qiao Lian knows that reality is different…

The Internet claims that Best Actor Shen Liangchuan is a male god who is unaffected by any sexual drive, but Qiao Lian vehemently disagrees. It’s a lie!

After finally carrying out the contract, Qiao Lian burst out, “I want a divorce! I don’t want such a life!”

- Description from Novelupdates

After transmigrating into a apocalyptic world, Yasin awakened a system that allowed him to travel between two timelines.He soon discovered an astonishing truth—women from both worlds were mysteriously linked.In the brutal apocalyptic world of 1993, they pledged their loyalty to him for survival.Yet, in the dazzling spotlight of 2006’s Hollywood, they remained legendary superstars.But the moment they saw him… they couldn’t stop herself from kneeling.