Life Changing System - Chapter 499 Claiming To Be The Divine King

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.

Ethan, a high school student that died alongside his bully transmigrated into another world.Ethan awakened in a parallel world, one where supernatural talents determined your worth, and the talentless serve as expendable cannon fodder.Born talentless in this new world, Ethan finds himself assigned as cannon fodder against the monster hordes that threaten humanity.But his death in the previous world seemed to have granted him a supreme Talent.Follow the story of Ethan as he awakens the strongest talent and strives to become the world's Strongest.

It’s the age of superhumans!Genetic modifications, Cybernetic enhancements, magic enchantments- the choice is yours! For the right price, you can rise above the masses and gain power only ever seen in myths!For the right price!No matter how far humanity advances, power will always fall in the hands of the wealthy few. It was a truth Dante learned at a very young age and with it came a burning hatred for those who look down on everyone from their ivory towers.The flames grew stronger once he found himself faced with the cruelty of those who rule from above. He swore revenge on each and every one of them, but true power couldn’t be fought with hatred alone.In his search for a weapon that could help him take his revenge, Dante crosses paths with a certain Artifact, his fate taking a turn he could never have anticipated.

The Principality of Atall lies between two great powers: the Kingdom of Allion to the west, and the Holy Dytiann Alliance to the east. Leo Attiel, the second-born prince, was sent to Allion as little more than a hostage, where he studied and trained in the military arts under a frontier general. And now, the times have reached a turning point.

Relations between Allion and Conscon Temple, a neutral land adjoining Atall, have worsened. Percy, sent from Atall as reinforcement; Camus, a warrior monk; and Kuon, a mercenary from a remote region, join forces to resist the looming threat of Allion’s army.

At the centre of the fighting, the three of them and Leo are about to have their fated encounter.