Dao of the Bizarre Immortal - Chapter 38 - Jianye Town

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.

Yang Yi crossed over the world with a storage space with him. He ended up in some desolate wilderness populated by flying beasts and dangerous predators and also crawling poisonous bugs and snakes. To prevent getting bitten in the ass by venomous bugs when going to the toilet, let the great infrastructure begins –
Our goals are:
Eat well till full stomach.
Having clothes to wear but also being good looking.
To have a house that could cover all seasons.
Roads that leads to every place; develop agriculture, industry and commerce together.
No shortage of both material and spiritual needs.
He was DETERMINED to build a safe, comfortable and prosperous modern city in the wild world together with the native tribe with max efforts.

- Description from Novelupdates

I've transmigrated to the Honkai World and became the future Herrscher of Ice, Kiana's cousin, Durandal's cousin, Ana Schariac.Hmph, I must become a Valkyrie aboard the Hyperion at all costs to survive!Come join the Ana fan club!Wait! I'm just a fictional character, not your wife!Players, you guys are so peculiar!Ah well, let's embrace the chaos!*****

It was the best cheat in the vast and ancient world!Its origin could be traced back to Trailokya and it was the highest law!…Three years ago, three living creatures fell from the sky. King Monroe of West Ridge got one of them and he conquered six countries to unite West Ridge.Wu Zhao of the Big Zhou Dynasty in the Southern Wasteland got another one of the living creatures. She dominated all 19 clans there and became the top figure in that region.Owen Bertram also got one of the living creatures. Yet three years had passed and he was still a nobody. Nothing had changed for him.However, he soon realized that the tiny loach that he got three years ago was actually the biggest cheat in the world.Moreover, it led him on a non-stop journey of becoming the biggest winner in life!