The Farmer's Eldest Daughter Has a Spatial Pocket - Chapter 688 - : Female Assistant Problem

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.

“Great Mr. Chen Yu, having been successfully elected as the leader of the human race last night, do you have anything you’d like to say to the whole world?” Chen Yu got out of bed, bewildered and still undressed, “I don’t know, I just woke up...”

The hot catch Prince Eighth, also known as General Invincible on the battlefield, surely is favored by God, not only does he carry a big weight in court but he also has a gorgeous face. However, he is crippled forever after a fierce fight on the battlefield…

On his wedding night, Luo Qianqian cracks a cheeky smile at him, “Your Highness, looks like we are going to be sisters for life, nice meeting you.”

Hearing that, Eighth is like, “WTF, who is going to be your sister?”

He put his hands on the wall to corner Luo Qianqian, “My princess, you think I cannot satisfy you in bed, hmm, don’t be so sure about that.”

- Description from Novelupdates

One day, the whole world gamified in the eyes of Su Mo.Not only could he use his lifespan to draw cards, but he could also see the hidden attributes of every item in life.As such, when he looked at the hanging lamp above him, he saw:[Item: An old hanging lamp][Hint: It will drop after one minute and seven seconds.]When he looked at his right arm, he saw:[Item: The right arm of a young man][Hint: The grip strength of his right arm is 3% stronger than that of his left arm due to continuous training.]When he looked at the ginseng on the table, he saw:[Item: A stalk of wild ginseng][Hint: It is tinted with a layer of source power. Consuming it could make you feel energized.]…Excited, Su Mo rushed to meet his girlfriend, who was a school beauty and had just agreed to date him.He then saw a bright red HP bar on top of her head.[Item: A very thirsty fox demon][Hint: You might not be able to put up a fight against her.]