Exorcist's Self-Cultivation - Chapter 700 - 677. Envelope switched to a different CPU

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.

Summoned after an unfortunate accident in hopes they could protect the world from a coming threat, Ben and his classmates are gifted another chance at life. With fame and fortune promised to whoever is willing to fight for the sake of the world it doesn't seem like a bad deal, there's just one small problem. Ben wasn't blessed with any magic or combat skills, just crafting and enchanting. While the skills themselves aren't useless they also aren't seen as being necessary to the coming war. Now not needed and alone Ben tries to find a place in the world while meeting some of its colourful characters along the way.

VOLK SMAAAAASSH!Reincarnated with a body like a nuclear bomb, let's turn this magical world into a nuclear wasteland!As someone who loved fighting, Volk Mogger was the most miserable of them all.Born with a small frame, tiny limbs, and underdeveloped muscles, he struggled to grasp anything that was taught to him. He was relegated to merely watching others fight—whether on the internet, on television, or in real life.One day, while riding in his wheelchair, he was abducted and taken to a strange place for a radioactive experiment, which ultimately failed.However, Volk soon discovered that he had been reincarnated in a magical world as a member of an Orc horde, which was hunted by higher life forms despite merely wanting to establish a land where they could honor their traditions and build a home alongside their symbiotic partners, the Elven Witch races.Suddenly, a system screen appeared before Volk, announcing that he had acquired the power to transform into an invincible radioactive titan who yearns to be the strongest of them all.However, this transformation had a time limit, and to extend that limit, he had to win! But win what?Ding!| Beat up the Orcs thief who stole your spoil and a chance to have a wife!| Reward: Extend the radioactive time to 2 minutes.| Failure: Minus 1 minute.| Current radioactive time: 2 minutes. |

The Prince of Su Wang, Chu Ba Ning is not famous because of his great status and power, but because legend has it that whoever becomes his wife will be cursed to death, with no children to inherit his fortunes.

Ever since the Emperor betrothed Lu Shao Qi to Chu Ba Ning, everyone had predicted that she will not be living any longer. Even the biggest casino in the capital city would gamble and bet how she would die. The side-concubines gifted to the Prince of Su Wang would also cry and kneel to the ground to hug Lu Shao Qi’s legs, begging for her to not drag them to death with her.

Lu Shao Qi complains: Heavens! Is it easy to find a virtuous wife like me? Such a fortune and you don’t know how to appreciate it!

—

This is a story about a modern girl who sets a goal to become a virtuous wife after being reborn into an ancient era. But she later discovers that her husband, the prince has OCD and has rumours of being cursed to be wifeless and have no children. As a result, our female lead is accused of being a controlling wife and she has no way out now.

- Description from Novelupdates