Bigshot Mr. Fu's Wife is Sweet and Wild - Chapter 44 - He’s Here, He’s Here

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 only way to stop the earth’s doom.Is to seduce the girl who is the student council president.

Chen Xiaoyun, an orphan from Guangzhou, China, once met a girl who looked remarkably like him. Before he could learn more about her, a deadly virus was unleashed around the globe.Humans turned into creatures straight out of video games and movies, and zombies and mutants roamed the streets with no one to stop them.From tanks to jockeys to even invisible zombies and mutated dogs. The mutations are just endless.“Why is there a zombie apocalypse just as I find my family? And why can I suddenly create things from thin air?”Will Xiaoyun survive the chaos with the new people he meets along the way? Will he use his newfound abilities to bring peace to a devastated world?Or perhaps he will just take another nap in the bed like a lazy pig——“Shut up. How am I supposed to do anything when you keep throwing women at me?”

【 Top Divine Doctor Novel, Absolutely Electrifying】Famed throughout Dragon Empire as the Sect Leader of the Holy Medicine Sect - Qin Han, unexpectedly reincarnated into another body, looked at his delicate wife and swore to redo everything, to slay the enemies behind it all. Simplicity and rudeness are my art of conduct, and 'if you don't agree, we fight' is my attitude toward life! Think you can do whatever you want with money? Sorry, my bank account balance has more digits than your social security number! Think you can do whatever you want with power? Sorry, with a wave of my sleeve, leaders of various nations queue up waiting for my medical attention! Think you can do whatever you want with people? Sorry, at my command, the entire Holy Medicine Sect springs into action! Watch how the Sect Leader of the Holy Medicine Sect dominates the Flower Capital, punches bullies, steps on arrogant youths, and unifies the forceful world!