Holy Necromancer: Rebirth of the Strongest Mage - Chapter 1040: : Pawn

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.

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.

Travel through the world of pirates and get the red police explosion system, with tens of billions of explosive troops, subvert the world!

He is known as the worst criminal in history. In order to kill the admiral, he sent millions of soldiers. He is known as the world’s worst criminal!

His mind-controlling device can transform the navy: “Five old stars, take a look, in the navy, which one of us has more people?”

His self-explosive soldiers frightened cp0, and his radiation soldiers made the four emperors retreat.

His super-time air soldiers made Tianlong people sleepless, and his super weapons and bullets made the general escape from danger…

“I’m here to give you an ultimatum! You’ve been surrounded by me!” On top of the war, Ren stood alone on the top floor of the Navy Headquarters, watching the two sides fighting and said calmly.

At the same time, a channel was opened behind him, hundreds of millions of mobilized soldiers, magnetic blast infantry, biochemical soldiers, self-explosive soldiers, pilots… tens of millions of prismatic tanks, aircraft cannons, and even super weapons, yes For the superhumans present!

“Wuluoxing, how many teachers do you have?”

(explosive flow)

- Description from novelbuddy

A world where dragons serve as mayors, elves work in sales, and orcs brew coffee.In a city full of enhanced humans and wandering wizards, I became a young girl with psychic powers.“To do something so terrible to a child… These people are despicable.”“Human experimentation related to psychic powers is an international crime, punishable by at least the death penalty. This is absolutely unacceptable.”“Don’t worry anymore. From now on, you’ve got nothing to fear. We’ll take care of everything for you, little sister!”It seems the protagonists have misunderstood something.