MTL - My Sword Intent Can Be Infinitely Improved - Chapter 235 Over, name the universe!

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.

Meng Qianqian, at the age of 15, married into the Lu Family to bring joy to the elderly matriarch.On the wedding night, urgent news arrived from the border that her husband had been commanded to go to war. Six months later, he tragically died at the hands of Beiliang soldiers.Five years later, the husband who had been presumed dead returned, and by his side was an ethereal mute woman named Wan'er.Lu Lingxiao said that Wan'er was the descendant of a loyal and righteous family, entirely different from her—a merchant girl reeking of copper coins. He claimed Wan'er was a true paragon of noble character.Lu Lingxiao also said that Wan'er was an eagle soaring in the heavens, while someone like her was nothing more than a fragile flower, unworthy of comparison.It was not until the land was broken, the city walls fell, and she wielded a Red Tassel Spear to crush countless soldiers that Lu Lingxiao realized he had misjudged her.She was not a delicate flower confined within the depths of the mansion; she was the fiercest west wind of Yumen Pass.

Arthur finds himself reincarnated as a spider in a dungeon after discovering his magical skills in a world of magic and mystery. He knows that everything in this world can evolve into something greater. Arthur begins his journey to evolve himself into a human by conquering one of the most powerful and mysterious dungeons.As he starts his journey, he finds new allies and enemies who look different from him—some who become like brothers and others who may betray him.Finding himself at the center of world politics, Arthur somehow creates his own monstrous kingdom from scratch, determined to live the life he wants and protect the people he loves. In his kingdom, he needs not only power but also strategy, as gods, demons, and other races use their own tactics and powers beyond imagination to maintain control and conquer worlds. Arthur embarks on his journey to live the life he desires... but will he succeed?

Kenichi Yamada was a 35-year-old salaryman. As a hardcore game enthusiast, he was saddened by the modern trend towards casual games.

So, when a site claimed to be “for people who like to do things the hard way,” he just couldn’t resist. Thus, he was reincarnated into another world as Allen, playing on Hell Mode.

This is fantasy light novel about Allen’s journey as a summoner.

Reincarnated as a serf, he starts from nothing.

His journey begins with absolutely no knowledge of the world around him, just like those games he played 10, 20 years ago.