My Martial Spirit is Nanobot - Chapter 222 - Creation Spirit

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.

When he was engrossed in the Wizard World, Roger unexpectedly transmigrated to a world that seemed familiar yet strange.In this place, the legendary monsters actually existed, disguising themselves among the populace and becoming a part of this world.Starting from a deserted island, Roger began his career as a Demon Hunter.Although he had an inborn golden touch after transmigrating, what made him somewhat helpless was that it wasn't him with the cheat, but rather just a dilapidated house ready to collapse...After a long time, when Roger ascended to the castle surrounded by mountain peaks,he couldn't help but let out a sincere exclamation:“From a cabin to a castle, the house is too big and hard to manage!”…………This is the story of a Demonic Hunter living in the modern world.

Gu Mingxi and Pang Qian were next-door neighbors, classmates, and deskmates. From year-to-year, even when the class seating was rearranged, they would still be deskmates. They grew up together like a pair of brother and sisters despite having different parents; if it was someone else, then their parents would probably have already arranged their wedding. However, Gu Mingxi was different.

An Xiaojiu stepped on the soap in the bathroom and fell directly to ancient times!

Crossed, or with Taobao, An Xiaojiu determined to become the ancient Jack Ma!

Just when I first wore it, I met grandma, grandma, and auntie. She either wanted to kill her or sold her!

These are nothing, we have Taobao! The ancient broken bowls can sell a lot of money on Taobao. We also double the eleven in ancient times!

I was thinking of being casual and doing myself well, but I was pregnant while unmarried. Only then did An Xiaojiu know how lowly the status of an ancient merchant girl was!

Low enough, she won’t be recognized by her future mother-in-law for buying one get two!

The secret of identity, whose conspiracy?

Love chase, whose life and death?

Looking back, my affection remains unchanged, can you still hold a sword to protect me?

- Description from Qidian