MTL - Infinite Clone: ​​I Am Invincible In Devouring Starry Sky - Chapter 74 Break through, just hammer me

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.

Growing up in a place where the rule of the jungle is law, the simple yet cunning Shaar is thrown into the chaotic world of war and political turbulence. After a chance meeting with a mysterious young girl, his destiny is forever changed as he embarks on a journey, joining the Byzantine army and climbing its ranks. With his bizarre beauty standards, will he ever return the affection of the girls that will follow him? Will he ever learn about his real parents? What lies ahead of him is a journey of strange humor and adventure.

Mr. Tycoon Is Actually the Father of My Child!