Destroy Me Gently:Ex-Enemy Becomes My Lover! - Chapter 14: Raisins and Lungs

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 being framed by her stepmother, she had spent the entire night with that mysterious man. In the end, she was forced to leave another country. Five years later, she returned with a pair of beautiful dragon and phoenix treasures! However, on the day of her return, she had offended the handsome CEO. What shocked her even more was that this CEO and her son looked exactly the same! “A pair of cute photos of Gongzi Bao accidentally went viral on the internet. One day, the CEO stepped forward and blocked her path.” “Woman, let’s talk about the right to the care of children!” “Let’s not talk about it!” A man placed her against the wall, “Alright, let’s not talk about our children. Let’s talk about when we can get a marriage certificate!”

“She had just traveled through time and now she’s doing a cesarean on her dead mother? And the children were still alive! Then, she had barely had the time to relish in her joy before the stupid villagers were going to burn her as a witch? Later, an emperor arrived on his horse and said, “Come with me.” The girl asked, “Why?” He answered, “Help my precious horse deliver her foal!”

Lin Fuyin had only thought of leading a quiet life with her two siblings after avenging her mother. She had never thought of being embroiled in the murder within the royal family as a village girl! Follow Fuyin through her tempestuous journey and as she stands at the top of the Wei Kingdom! The phoenix flaps its wings, about to soar…”

- Description from Novelupdates