Overlord of Blood and Iron - Chapter 342: Nilus, Power Up!

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.

Roan transmigrated as an FBI investigator.Several years later, a journalist interviewed the world-renowned detective Roan Greenwood and asked,“What made you persist in solving cases for so many years?”Roan tilted his head and glanced at the sports car beside him, the villa behind him, and the beautiful woman inside the villa. He smiled slightly and said,“Well, the bonus after solving the case.”“What?”

Ethan Walker a normal boy was just playing his game favorite game [Legacy Of Heroes]. But who would've thought fate had a different plan for him.“Why him of all people!?”Transmigrated into the world of the game he takes on the role of Noah Von Blitzfeld, the younger son of the Blitzfeld Duchy, who was fated to die while saving his fiancee in a disaster unfolding in the academy.

“Why didn’t you tell me?”“Tell you what, Richard? What would you have done?”“I don’t know. Apologized sooner? Bought you a burger to make up for it?”Her eyes lit up with fire, “You think what you did to me… you think a burger can make up for it?” her eyes twinkled like she was fighting tears. Did I hurt her that badly? I was just a foolish teenager.“Nita, I am sorry. I was young, I was stupid. I wish I could take it all back and tell you how I feel instead of being a constant jerk to gain your attention.”“How did you feel that would justify what you did to me?”I paused for a minute, finding the words. “I had a huge crush on you at the time. And I didn’t know how to express myself. I was full of myself, I was the school’s ladies' man and the one girl I had eyes for didn’t even care if I existed,” “And that justified what you did to me? Richard, you broke me. I can forgive you for ‘accidentally’ spilling your ice cream on me, or throwing my due assignment in the toilet, or the gum in my hair, or the glue in my chair but tell me how can I forgive you for what you did that night? Tell me!”“What night? Nita, what are you talking about?”“Remember when you asked me if I knew who sexually assaulted me?”I nodded, but what does that have to do with anything? The more we spoke, the more confused I became.“You did and I cannot believe that you would stand there and pretend like it didn’t happen!”Nita has spent years trying to forget the torment she endured at the hands of Richard. When her family’s financial ruin forces her into an arranged marriage, she is horrified to find out the groom himself was her bully.Richard, a charming and successful businessman meets the first woman to be repulsed by him. Intrigued, he proposes a deal of a one year marriage of convenience.Navigating life as a couple, old wounds reopen, buried memories surface. As Richard learns more about his wife, he finds that he has enemies that followed him from his past to continuously cloud his wife’s judgement.Will Nita believe the truth and bury old wounds or will the pain of the past prove too strong to heal?