Love History Caused By Willful Negligence - Chapter 43Vol. 2 :

In a quiet world, Adam lived his life peacefully but it all changed when he woke up in an hospital bed with the ability.....Creation Of All ThingsArmed with this Overpowered ability, watch how Adam would uncover the truth of his world and beyond..

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.

Invincible fists, unrivaled hammers!

In Tianlan Continent, there is a magic store called Origin Mall.

The Coke here can make people full of blood in an instant; the spicy bars here can make people fight leapfrog; the games here can make people improve their cultivation; the novels here can make people understand the techniques…

There are countless goods here, including leisure, entertainment, dining, training…

Oh, by the way, remember one thing, don’t make trouble in the store, because the owner of the store is very strong…