I Can Create Clones - Chapter 89

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.

After dying in the world of One Piece, he was reincarnated once again this time as Neji Hyuga. But fate was no kinder here. With his father dead and the cursed Caged Bird Seal looming over him, for his survival he made a ruthless decision....

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

Kenji’s life was hard. During the day, he worked in a bookstore. At night, he served ramen. He did it all to take care of his family. His mom was sick and needed medicine, and his little sister needed money for school. His best-paying gig was working for a mysterious author, illustrating the manga for a popular web novel. There was just one problem: he hated the story.He was in the middle of drawing the academy arc when his frustration peaked. The story’s villain, a rich kid named Azrael Ashveil, was weak. He made dumb mistakes and died unfairly. Kenji thought the character deserved better. After finishing a panel showing Hero's Victory, Kenji collapsed from exhaustion.He wakes up not in his small apartment but in a fancy bed with silk sheets. Looking in the mirror he sees the handsome, violet-eyed face of Azrael Ashveil. He has entered the story he hated and is now the doomed villain.Worse, he's arrived late to the party. The original Azrael has already made a mess of things. The story's golden-boy hero, Kaelen, already despises him. His beautiful wife, the half-elf heroine Elvara, is terrified of him. And all of his death flags-the events that lead to his execution are right around the corner.Azrael must use his knowledge of the future just to stay alive. Can a minor villain with no power of his own really change his fate, or will he just find a new, even more tragic ending than the one he was trying to escape?