Sold to My Killer Husband: His Concubine's Dilemma - Chapter 95: Diplomatic gesture

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 world where the Hero and the Demon King continue to oppose each other. The grand magic from the Hero and the Demon King cross over worlds and exploded in the classroom of a certain high school.

The students who died in the explosion will be reincarnated in a different world. The protagonist, who had the lowest reputation in the class, was reincarnated into a spider. Nevertheless, she adapted quickly to the present condition with strong willpower.

This is a story of she who has become a spider trying whatever she can to live.

Reborn into an ancient world of hardship, Chen Qing became a scholar who toiled through ten years of cold study, finally achieving fame on the golden list. Just when he thought he'd join the ranks of the literati, marry a beauty, and reach the pinnacle of life, he suddenly found himself entangled in a bizarre and fantastical incident.It was also at that time that he discovered this world was far from simple—there were man-eating demons, heart-bewitching devils, and even the legendary immortals who could live forever but were exceptionally strange!What he found even more inconceivable was... these deadly things seemed... to all have been designed by himself!!!

As everyone knows, there are three rules for survival:- Good grades.- Wealthy background.- Having Pei Yan's protection.Fortunately, Jiang Shaoyao meets the first two criteria. Unfortunately, she also meets the last one.Pei Yan, the school's top tough guy, rebellious and arrogant, is notorious for his troublemaking. However, he has devoted all his patience in his life to one thing—pursuing Jiang Shaoyao.His friends advise him, 'Brother Yan, give it up. The little fairy is a good student; she's not one of us. It's too hard to chase her.'Pei Yan scoffs: 'I've been spoiled from a young age, if I can't chase her down, then...'Two years later, at a class reunion:'Brother Yan, did you manage to catch up with sister Shaoyao?''Shut up.'...*A story of possessive young man VS a realistically clear-headed young woman.*No high school romance, but they get together after university.*Study hard, stick to your dreams—it's an inspiring story.