SorryImJustDiamond

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!!!

Donation link: https://ko-fi.com/sorryimjustdiamond

PS. Cover not mine, I just found it on google. If you are the owner and want me to take it down, then you can reach me in the comment section.

Reincarnated as an Imperial Prince

"Shit! The Britannian battleship just fired on their aircraft carrier," the captain of the Rurik Class Battlecruiser cursed, completely flummoxed at what just happened.

"Captain! We can't contact Admiral Samuel! What do we do?"

"Inform all the captains of respective ships to commence battle stations!" the captain of the Rurik Class Battlecruiser commanded and continued. "We have to inform the Central Command about this and wait for orders. For now, do not fire unless fired upon."

Inside the HMS Illustrious, Admiral George and Samuel were lying on the floor, groaning in pain as a powerful shockwave knocked them out. They slowly rose to their feet, staggering and reeling as they ascertained what happened.

"Someone just fired on us!" Samuel shouted.

"Was it you?" George yelled back.

"There is no way that my fleet will attack the Britannian without my orders!" Samuel defended.

Rogue Ship