Virtual World: Peerless White Emperor - Chapter 998

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.

In a world where talent is everything—what happens when someone dares to cheat the heavens?Xuan Wu awakened in the brutal Fire Haven World where the strong eat the weak, where practitioners cultivate techniques to live longer and grow stronger. But just as despair crept in...[Ding! Awakened the Supreme Cheat System][Anything you desire, reality will obey...]Cultivation? Piece of cake.Upper worlds? He can ascend and descend with a thought.Enemies? A single word is all that is needed for obliteration.As Xuan Wu overlooks the world in his grasp, he asks himself—should he dominate, conquer worlds, create planets?Or should he play along just like an ordinary disciple?

This is a story about a graduate student of ancient Chinese who was repeatedly trampled on the road to employment, and returned to the middle of the Ming Dynasty and entered the body of a young child in a mountain village. There are many disputes in the farmyard With a dull father, a fierce mother, and a group of extremely bad relatives. Fortunately, we have thousands of years of historical accumulation, the Four Books and Five Classics, and the Eight-part Essays, and the majors are also suitable. Who says that it is difficult for a poor family to produce a noble son? The national strength has risen, and the rule of law has been relaxed; the law and discipline are lax, and the official discipline is lazy; there are a few treacherous ministers, and there are also some Japanese pirates; but overall, it can be said that this is a fertile ground for the free growth of scholars and officials. A legend of the rise of a poor family also grew from here

Reborn in 1992, he supported the college student wife Ben and Shuo to study in a row, but she was not allowed to* after ten years of marriage, and she was scolded for peeking when she was washing her hair!

“You’re my wife, what’s up with you washing your hair!?”

“Sneak peek?! You gave me that stealing word!”

“divorce!”

He Hongchang slammed the door into anger and slammed away, but he plunged into the mouth of the hurricane where pigs can take off, and became a trend-setter of the times!

- Description from novelbuddy