Mated to the Warrior Beast - Chapter 241 - 241 Predator

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.

Cheng Yan transmigrated only to end up in a medieval Europe like world, becoming Roland, a Royal Prince. But this world doesn’t seem to be the same as his former world, despite some similarities. Witches are real and they actually can use magic?

Follow Roland’s battle for the throne against his siblings. Will he be able to win, even though the king already declared him to be a hopeless case and with the worst starting situation? With his knowledge of modern technologies and the help of the witches, who are known as devils’ servants and are hunted by the the Holy Church, he might have a fighting chance.

Now, let his journey begin.

Synopsis one: “The people here aren’t innocent. They’re cunning, they’re greedy, they’re ruthless.” “The nobles here aren’t noble. They’re selfish, they’re arrogant, they’re schemers.” “I was once furious about this. But now, I just pity them. This is a dark world, from the moment they were born, they had no choice but to live life like this. Now, I will give them a choice.” “I want to bring them food so they can be freed from hunger, that will give them morals. I want to bring them peace, so they can have beliefs. I am a transmigrator who has come from a faraway world, I want to bring the fire of civilization to this dark and barbaric place. I know I’m doing the right thing. Eliminating hunger, eradicating plagues, suppressing evil, and ending wars. I will give a second chance to anyone who wants change.” “Then, I’ll kill all of those shameless, brainless idiots.”

Synopsis Two: Kang De transmigrated. He didn’t expect this new world to have sorcerers, dragons, and even gods who were mythical beings that only existed in legends. To protect himself, Kang De had no choice but to train and fortify his body consistently. Soon, he realized that malicious intent didn’t just come from those who possessed extraordinary powers, but also the greedy aristocrats and the king, who was a ruthless dictator. “What? Did I overthrow the nobles? I just wanted to lead the people in my territory to live better lives?” “Why are you guys calling me the king? I don’t want to be a king!” By the time Kang De realized what was happening, his territory had already become the most powerful human kingdom on the continent. The Dragon Emperor called him a brother and powerful sorcerers formed his army. The only targets left now were those gods who saw themselves as superior beings!

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.