Dragon Tamer - Chapter 148 - 149: Do Not Peep at Impropriety

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don’t know, is that this fight will cost them more than they could have ever imagined.

Dynasties rise and dynasties fall, like the tide washing the sand.

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.

Bai Pingting has always been contrary the saying, “A woman’s virtue is ignorance.”

Although she serves the Marquess of Jing-An as a maid, she leads a life far richer than most women. Her plain appearance is not what defines her — but her intelligence, far beyond many wise men.

Although Chu Beijie was an enemy general, she still cannot help being attracted to this man, despite the many lies and conspiracies…but between love and loyalty, she must make a choice. She can only hope that man’s love for her isn’t as deep as she thought.

One is a soul who seemingly destroys peace while the other aspires to be the sword that saves. Between them, lies a mountain of hate…

Who of the two most cunning people on earth cast the trap and just who captured the other?