I Became An Academy Spearman - Chapter 30: Magic Engineering Item: Elimian’s Consideration

This web novel’s a hidden masterpiece. Give it a few chapters......Li Xun was meant to live a quiet, privileged life as the heir of Prince Fu in the mortal realm. But that future shattered the day he was kidnapped and forced into one of the most powerful righteous sects. There, he was coerced into stealing one of their secret techniques.In a world of ruthless schemers and intricate plots, where every step hides a plot and traps are laid one after another, only those who plan flawlessly can survive to the end.What began as a desperate struggle to stay alive would transform Li Xun from a helpless pawn into the most terrifying cultivator the world had ever known.......

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.

Upon awakening, the apocalypse's metaphysics master, Nan Li, found herself as the lost Sixth Miss of the Anyang Marquis ManorThinking it would be a story of abuse, she never expected all five of her brothers to dote on her one after another!Nan Li shouted, “Stop pampering me! In fact, I can do everything, from capturing ghosts, exterminating demons, divination, physiognomy, to healing and saving people. I'll lead the family to rise in power and wealth!”Accidentally saving the Ninth Prince, who held great power in the court, Nan Li found him renowned for his cold and unfeeling demeanor. However, he became utterly addicted to pampering her and refused to take other concubines.The scheming and malicious women were angry, shouting, “The prince lacks heirs, how can this be allowed?!”Nan Li pointed at the line of little ghost-catching disciples and said, “I'll cure your poor eyesight!”The Ninth Prince lifted her in his arms and said, “We have a bit of thin property that needs to be inherited, so we'll have a few more children.”Later on—Nan Li looked at the continuous immortal mountains and the room full of treasures, her mouth twitching, “I thought you had a throne to inherit, what's going on now?!”

Another year of enlistment season, the recruit company is a rare encounter in a hundred years, bringing together a group of unruly thorns with sky-high backgrounds!

When everyone was at a loss, Qin Yuan recommended himself to be a recruit company commander and began to build the strongest special force!

In the annual large-scale military exercise, recruit companies are allowed to participate and are responsible for simple logistics.

However, when the red side was retreating, a miraculous scene appeared on the battlefield.

The head of a reconnaissance regiment of the Blue Army: “Report! The red team cheated! Our reinforcement regiment was defeated by the enemy’s special forces, but the enemy actually made a poor excuse to call himself a recruit company!”

Brigade commander of a rocket brigade of the Blue Army: “Can’t you afford to lose? Special forces are not allowed to participate in this exercise! Your red team actually dispatched special forces?”

The Blue Army’s superior roared angrily: “It’s just nonsense! I was shot in the head with special forces in violation of the rules? You also quibble that you are a recruit company?”

Qin Yuan smiled lightly: Don’t pretend, actually… I’m bringing special forces!

- Description from novelbuddy