MTL - Across A Millennium to Love You - Chapter 3

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.

I got hit by a truck and woke up in a world unfamiliar to me.[System rebooting… AI core active.][What can I help you with?]With a hologram screen floating before me, Chat GTP, the pinnacle of artificial intelligence.[Combat mode activated.][Here is the steps to create a atomic bomb.][Efficiency: 99.8%. Shall we proceed with conquest?]And with it, I became the most dangerous man in this world.

“I time-traveled, and so did my dad,”Li Ping'an had already arranged everything. He had set up a solid family business for his father in the mundane world and taken care of the relationship to enter the immortal sect. Then, he was determined to tread the path of immortality, to seize his chance at becoming an immortal.But he had never imagined that on the day he attended the talent testing in the mundane world, everything would change...

Arsene Academy – the best educational institution on the continent.

A place that’s famous for nurturing many talented people.

A warrior from a barbarian tribe enters the academy.