Penitent - Chapter 201 Book 3 Ch 45: Divine Whispers

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.

Augustus Cross was a man close to his 30s with nothing to his name. People rolled their eyes at the seemingly useless man and he remained helpless even as his daughter was at the brink of death.When all hope seemed lost, the hidden dragon within him was unleashed when the seal broke accidentally as his birthmark was stained with his own blood. Knowledge of ancient arts filled his subconscious, granting him powers to cure his daughter and other incurable illnesses.A man who was once looked down by everyone is unstoppable now. What lies beyond this man with the power he now possesses?

# pet beasts # impart cultivationLin Bai transmigrated to an eastern fantasy world where everyone cultivates.On the day he transmigrated, he received an Impart Returns System.As long as he imparted his cultivation to a pet beast, the system would return him a random reward that could be anything between twice the amount he imparted or even up to 10,000 thousand times.[3 years of cultivation imparted to White Cat. 10X returned. You now have 30 years of cultivation!][White Cat has activated the genes of the ancient White Tiger! White Cat has evolved into White Tiger!][5 years of cultivation imparted to Green Snake. 100X returned. You now have 500 years of cultivation!][Green Snake has activated the genes of the wild Green Dragon! Green Snake has evolved into Green Dragon!][8 years of cultivation imparted to Firefinch. 1000X returned. You now have 8000 years of cultivation!][Firefinch has activated the genes of the ancient Phoenix! Firefinch has evolved into Phoenix!][10 years of cultivation imparted to Spirit Fox. 10000X returned. You now have 100000 years of cultivation!][Spirit Fox has activated the genes of the Nine-tailed Fox! Spirit Fox has evolved into Nine-tailed Fox!]Before imparting, everyone always says, “My goodness! This guy’s pet beasts are so powerful!”After imparting, everyone always says, “Good god! This guy is way more ridiculously powerful compared to his pet beasts!”

The universe is big, and Hayden’s about to invade it. Being drafted into a demon army wasn’t on Hayden’s bucket list. But when his soul is shoved into a human soldier on the eve of a new invasion, it’s not exactly like he can appeal the decision. Surrounding Hayden are demons, excited and ready. For them, the invasion promises a feast of souls and new growth. Their target? Berlis — a sword and sorcery realm straight out of classic fantasy. Hayden’s human status puts him at the bottom of the totem pole, meant to be cannon fodder that soaks up damage and dies first. But as he plunges into the carnage, he’s learning that he was born for the madness. Readers can expect: + Grimdark action and violence + Fighting, lots of it + Multiple worlds and magic systems + Slow burn