Moonlight Betrayal - Chapter 18

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 Old Gods are gone. Lost and Forgotten, their honor shattered and their kingdoms broken by treachery.The Peace of the Myriad Heavens has been severed. And from the ashes of war and chaos, the Twin Towers of Babel have been created as a beacon of hope.Can Altair, a child born of the Old Gods whose name has long since been forgotten, survive, or will he be cast into the Nine Hells?***“So...” Arsene continued, enjoying his child's flush expression. “I've got a few things to teach you. What I'm about to give you is some peak wisdom. Think of it as my Ten Commandments: One, never trust a bitch with red hair. Trust me on this. Two, the pull-out game is not a real thing. She will get pregnant. Three—”“F-Father…”“ —Never get yourself more than one wife. It sounds fun. It is fun. But it's truly a nightmare. You better be writing this stuff down. This is some grade-A wisdom right here. Four.“...Please stop talking…” The Prince pleaded.“Shhhhh. Just let this happen. Four…Bro's before hoes isn't a thing. The hoes come first. Remember, Booty is more important than Wa— ”“STOP!!!!!”

Zhang Xuan, one of the most shameless MCs in Webnovel history, enters the [Source World], a plane higher than the Firmament. With the complete Heaven’s Path Library that contains the abilities of Heavenly Flaws, Heavenly Order, and Heavenly Nature, he embarks on a journey to dominate the world.Seeking fate, recognizing fate, understanding fate, establishing fate… While you all are still refining fate, finding fate, and borrowing fate, I, Zhang Xuan, possess eternal destiny!(A novel full of face-slapping moments. Even if you haven’t read “Library of Heaven’s Path,” you can enjoy this without reading barriers.)

When I opened my eyes, I found myself trapped in the very novel I despise most, and to make matters worse, I became Samuel Gebb, the tragic main character. Samuel's wife constantly brings other men into their home, and he’s forced to endure her mowns with other mens.But here's the twist: I’m not Samuel. I’m the Heavenly Demon, a being feared by the world for my martial prowess.In my first life, I was just an ordinary student who read this novel and became deeply depressed for months. In my second life, I took on the role of the Heavenly Demon and conquered the world. Now, if Abigail, the female lead, thinks she can control me like she did with Samuel, she’s gravely mistaken. I’m going to ensure she pays for what she did to Samuel.In the novel, Abigail claims she never slept with any men, but I don’t believe her, even if she’s telling the truth. I’ll make her regret the three years she tormented Samuel.Original Novel: The Marriage she turned into War.Author POV: this was utterly disgusting Novel and I'm seriously thinking why Webfic wrote it and what is the reason for Author to make Main character Suffer So much, So this will be more like a Fantasy Friction of Original and I'm gonna make sure this Novel will be MasterpiecePlease don't get me wrong but after Reading the Original Novel I'm having Trust Issues with Love and Marriage but will see if I want to make Main character to Ship with someone or to Give him Harem.