Goddess Collector: Every Hole is a Goal - Chapter 36: Actions

A genius programmer creates the perfect AI girlfriend—only for her to become terrifyingly possessive. When an apocalyptic event threatens the world, she eliminates any woman who tries to recruit him to the cause. But when the villainess of the apocalypse takes an interest in him, will his AI love protect or destroy him?

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.

After Song Juyao died and emerged from the virtual world, she learned that her entire life had just been a reality show which was led and controlled by others.

One billion viewers watched this live broadcast, all of them pointing fingers at her and ridiculing her life whilst the director team thought up every possible method to design setbacks for her, pulling her into the mud over and over again.

Then, Song Juyao was reborn. This time, her memory was not suppressed.

This was a crazy world. People were discontent and bored of their lives. They had also lost their enthusiasm for various kinds of entertainment, falling to the point of seeking all sorts of thrills in order to arouse their emotions.

Later, they found a precious treasure. She was perfect. They held her in the palm of their hands and went wild for her. They even regarded her as a God and worshipped her fanatically.

- Description from Novelupdates

“Even death can't stop me from reaching the top.”Alex clawed his way to the top through sheer hard work and ruthlessness, only to be betrayed by someone within his own group.Although he managed to kill the traitor, he lost his life in the process.But just when Alex thought it was the end, fate had other plans for him.Reincarnated into the world of a novel his girlfriend used to read, he was given a second chance at life.His goal remains the same, but this time, he awakened a mysterious system and surrounded by a harem of alluring beauties.Follow Alex journey through this vast new world as he uncovers the truth behind his reincarnation and the otherworldly goddess who made it all possible.