My Wife Is a Transmigrated Master Cultivator - Chapter 14: The Red Bull Amulet

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.

She was the daughter of a plutocrat, an elite with multiple identities, known and respected by everyone; she was a young girl from a rich family, who was peacocky and shameless, loathed by all.

After being reborn as her, she defeated the bad man and the angelic bitch, took revenge on the bad guy who killed her, married the most noble man, got into the sweetest relationship, and stunned the world!

Reporter, Mr. Leach, what is your favorite thing in the world?

Benson, Jill.

Reporter, Mr. Leach, what do you like to do most every day?

Benson smiled, Sleeping with Jill in my arms at night.

Juliana: ...

After discovering about her wealthy husband’s affair, she humiliates the adulterous pair on the streets and divorces him the very next morning. Just as everyone anticipates her downfall, she goes on to marry the most brilliant bachelor in the nation whom her unfaithful former husband cannot hold a candle to!

He called himself a human. However, the world revered him as a god. The epic adventures of Yeon Woo-jin, who possesses extraordinary psychic powers, unfold in a ruthless world.