MTL - I Formed The El Cat Investigation Team In Pirates - Chapter 207 Little kitten, big ability

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.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

When the pure lotus provoked her, she slapped her instantly, “It's just a pair of worn-out shoes. If you want them so desperately, take them and wear them.”President Jones intruded with a cheeky face, “Wife, even if they're worn-out shoes, I'd only let you wear them.”“Scram!”...【One man, one woman】Four years ago, she left in fury with the bun in her oven. Four years later—“Uncle, I noticed that your face has a gloomy look, it looks like you have excessive liver heat. It's obvious you lack a wife. Do you want to get to know my mommy?”The president who remained aloof from women looking at his mini-me, his eyes deepened. He immediately packed up the mother and child, and brought them back home, pampered them to the point of annoying everyone.Someone asked, “President Jones, isn't this a bit too unreasonable?”The president smirked coldly, “You expect me to be reasonable when pleasing my wife?”This is a story about an overbearing President Jones, who's fiercely dominant, and unreasonable in pampering his wife.

Lucien's last memory was skidding tires, blinding headlights, the sickening crunch of metal.But that wasn't the end.He lived his life and died an overworked and underpaid, but he rose as Lucian D’Aureville. Incumbent heir to House Aureville, one of the most powerful houses in the kingdom.However it wasn't as rosy as it seemed.His predecessor had been murdered by someone, and they wouldn't be happy to see Lucien alive.Follow along as Lucien navigates the complex and treacherous path of nobility and wealth as he rises to the top.