I Really Am Not The Lord of Demon - Chapter 62

When a glorious old civilization was toppled overnight, a strange purple moon rose and thus began the Purple Moon Era.

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.

One day, a silver-haired goddess appeared before him.“Heaven-Defying Star. The one who goes against fate. The sole savior of a world doomed to end—”What the hell is this woman even talking about?“You must be the Regressor.”“… What?”No, I’m not.

In her past life, Lu Zhaozhao placed her trust in the wrong people, inadvertently causing the death of the man who deeply loved her.Reborn on the first day she met him, Lu Zhaozhao decisively dragged Song Si Nian to register their marriage. As she busied herself with dealing retribution and slapping faces, she had only one principle regarding her husband, who suffered from emotional expression disorder: to love him.What Lu Zhaozhao did not know was that she was Song Si Nian's only light. His illness made him paranoid and obsessive, yet he dared not reveal his true self to her.But the truth cannot remain hidden forever. When everything about him was laid bare before her, Song Si Nian held her tightly, tears reddening his eyes, and with a timid voice asked while buried in her neck, “Zhaozhao, do you not want me anymore?”