This Young Master is not Cannon Fodder - Chapter 307: Monarch vs Lord

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, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.

Chase C. Miller is an actor with chillingly glowing purple eyes that could violently take one’s heart and a beauty that draws everyone’s eyes. After spending a heated night with him, Josh was imprinted behind his ear and he now had a secret that must never be found. It was none other than the fact that he was pregnant with Chase’s child!A few years later, Josh, who had been hired once again as his bodyguard, is astonished by his appalling character. Despite this, every time they meet eyes and stand close together, Josh cannot seem to be able to stop his heart from beating faster.“Oops, are you all right?”“You f*cking bastard, how dare you—”“Yes, I somehow dared to touch my client’s dick. I sincerely apologize.”

Strange not only becomes the Sorcerer Supreme after being reborn and possessing that body, but he also forms unexpected bonds with the Avengers, takes part in epic battles, and manipulates time and reality to prevent critical alterations in the timeline. However, despite his power and wisdom, his life is constantly interrupted by duty, leaving him no time to enjoy the youth he longs for.Just when he thinks he has gained complete control, in his sacrifice for the world, he is reincarnated again—this time in the Harry Potter universe, where he is reborn as Stephen Flamel, the adoptive grandson of the legendary Nicolas and Perenelle Flamel. Now, with a second chance to enjoy his childhood, Stephen embarks on a new adventure in a world full of magic.Notice: It contains yuri from a secondary character who shares prominence with the main character in later chapters.And no, it is not NTR. No problem.English version of my main work. On my Patreon I will upload the translations every day until I reach one chapter a day. I will post 5 chapters in advance on patreon. You can also watch the chapters of the Spanish version, and maybe you can use a translator. Remember that the worlds where the story takes place are not mine, they belong to their respective owners, only this story is mine.I'm not very good at English, so I have to use the help of ChatGPT for corrections. Please be patient.