From Londoner To Lord - Chapter 164 - 161. Parting of the ways

A small immortal clan, with the efforts of the ancestors of the past dynasties, slowly developed into an immortal clan. This is the history of the development and growth of a small family. During this period, there were ups and downs, and there were also struggles for power and profit.

- Description from novelbuddy

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.

An Ning transmigrated to a parallel universe in the year 1780, initially hoping to use his understanding of history to remain neutral and become a wealthy landlord, seeking neither fame nor recognition in the troubled times.However, it seems that the course of events has somewhat spiraled out of his control.'Respected General, we acknowledge no one but you,' said the young Captain with the surname Bonaparte.

Heavenly Pearl, an unknown mysterious, and heaven-defying object, for some reason, enter the heart of a young man named Ye Xiao who was framed and crippled by his fellow sect members for some unknown reasons and got kicked out from his sect.