Maoyuu Maou Yuusha - Volume 3 Chapter 7, “You Are Not bandits.”

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.

Modern agent Yang Lan’er has time-traveled to a peasant woman whose father-in-law was conscripted and raised a pair of twins alone.

It was a time when the Daying Country was suffering from drought year after year, and faced with the villagers fleeing famine with their families, they were not afraid or afraid! I have space in hand!

Yang Lan’er went the opposite way and resolutely took her family into the depths of the mountain.

From then on, go hunting in the mountains, fish in the river, farm, do business, and bring your family to make a fortune!

The new book “Abandoned Women of the Ages: Getting Rich from Space Warehouses” welcomes all book lovers to read~

- Description from novelbuddy

When gods gather, lightning will strike and the earth will move. Immortals! Which of the numerous way to immortality should one follow? Immortals are hard to seek, but why should immortals hide? Heaven has no mercy, but humans have emotions, and these emotions hinder the road to longevity!