I Got Stronger By Using Copper Coins Until I Am Invincible - Chapter 463 - Beating Up the Ultimate God  

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.

“How did it go?” Lily asked the next morning when Ava got to the living room.“Terribly.” Ava replied flatly, dropping into one of the sofas.Sarah entered almost immediately and sent Ava a teasing and wicked smile.“Really? That bad? Lucas is really great in matters of the bedroom. Did you do something wrong?”“Our little new concubine here is a virgin.” Sarah announced. Lily gasped and covered her mouth.“Oh God. That is not the kind of man you want to lose your virginity with,” Lily said.Sarah burst into laughter at Lily's comment.“It's not funny,” Ava scowled.“Actually it is. Better warm up to the idea because when Alpha Lucas Raventhorn wants to take you, he will in the roughest way possible.” Sarah advised.“You mean like last night? I thought he was going to rip you in half.” Ava rolled her eyes.“I like my men rough.”“Well, I don't.” Ava retorted.“If you are looking for flowers, love, and vanilla sex. You are a concubine to the wrong alpha.”“Ain't that the truth.” Ava murmured under her breath

Today’s headlines –
   “The Malaysian Master has broken through nine products and fought the world!”
   “The pony master is the best, sweeping Eurasian!”
   “Joe’s helper once again, suspected of nine major masters!”
   “The god of the gods is not old, the global master list re-enters the top ten!”
   “…”
   Looking at a piece of news flashing, Fang Pingxin is so tired, this script is wrong!

- Description from 69shu.org

A man from modern Earth is reincarnated into baby Zeus.Arm with future knowledge of the Greek mythology even if it was little, it still covered major events in the world, he will make sure to be a better and more powerful version of the Sky Father.