MTL - The Earth is Online - Chapter 218

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 first time they meet, she bumps into him. The second time they meet, she agrees to a marriage contract in exchange for his help in her bid for revenge. But… he becomes addicted to loving her.

During his first attempt, he flies a helicopter domineeringly; in his second attempt, he arrogantly removes all his love rivals; in his third attempt, he tries to tie her down using a cute child. Youxuan replies with a plain resounding ‘no’ all three times.

In the end, Shan Hanjie takes one look at her, grits his teeth, and plops onto the ground. “Babe, you dropped your prince charming, please bring him home!”

Gu Yanfei was reborn.

In her last life, only after her death did she find out that she was a real daughter in a book of true and false daughters.

The original female protagonist, Fake Daughter, is the daughter of luck. She occupies a magpie’s nest and is loved by thousands of people. She is the eyeball and heart of the Gu family, stepping on her Gu Yanfei’s flesh and blood for a lifetime of honor.

In that lifetime, Gu Yanfei lived and died unclearly.

After her death, she was reincarnated into the realm of self-cultivation and became a medical practitioner. She didn’t want to, but after practicing for two hundred years, she was struck by a thunderbolt back to her previous life.

Back to the time when the true and false daughter’s life experience was revealed.

When the real daughter came back, everyone in the Hou residence laughed at her with no ink on her chest and a straw bag.

But I don’t know that Gu Yanfei is now a full-level rebirth!

- Description from novelbuddy

“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