The Emperor and the Knightess - Chapter 146

Hua Jin Lan, a 21st century assassin, was tied up by her sister and thrown into the sea. When her eyes reopened, she had became the daughter, with the same name, of a martial arts family in the Yue dynasty. Some say that the daughter was worthless and just a pretty face; some say she was shameless and proposed to 5 different men a total of 10 times; some say she was a ruthless person and when unable to obtain love she turns to love potions. She was exposed thus while bearing both shame and resentment she jumps into the river and commits suicide……Wait what?

A good-for-nothing who went missing for three years finally made his comeback! He successfully inherited ancient powers that defy the heavens! Proficient in medical skills and spells, the city was at his whim—everything was in his favor!

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.

Mo Poor never thought that he would suddenly have supernatural abilities until he shot an arrow towards the sun. The absolute hit means that he can be the god on the pitch, the god of the basketball world, the big Luo Jinxian in the game… He can easily become a winner in life, spend his life magnificently, and wealth and power will not be difficult . Just as he was using this to change his destiny and enjoy his life, he met the inmates who claimed to be from the Blue and White Society… When he understood this organization that executes necessary evils in the dark of the world and maintains human security, he found his true identity Goal: I want to become the president of Lanbai. The contents of this book, D-class personnel nouns and inspirations are derived from works on wikidot. And released according to CCBY-SA3.0.

- Description from novelbuddy