Rise of the Malactric Heir - Chapter 21 Complications

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.

The doomsday fell upon the earth when a dragon coffin sealed under a snow mountain for ages shifted, and the civilization of gods and devils began. The whole universe turned into a fantastic new world where everyone could rise to the top through cultivation. A lucky young boy seized the opportunity, and started his journey to be an overlord in cultivation.

- Description from Novelupdates

Destiny splits before me into two unrelated, straight lines:one leading to a palace and city ablaze, the Kingdom overthrown, the Earth bearing suffering, and Life enduring torment in this Fire.And the other leading to the pinnacle of Ancient Kings, where deities in the clouds personally crown me. I don the laurel wreath, basking in the cheers of the mountain. My gaze pierces through the mists of history, my Knights conquer lands for me, my Sword cleaves through obstacles, leading my people to victory.I take up this Scepter, holding the Authority of the World in my hands. I overlook the multitude, altering the course of history.I am Brand, King of Vorn, and this is my Legendary tale..........................Plain version synopsis: This is a story about a Senior Warrior with memories of rebirth, crossing back into the World he once fought for to alter the strands of history and make a mark in the sands of time.

[By the Author that brought you “Return of the Frozen Player”!]The Return of the Fallen Tower Master: The Revival Era of the Magic Tower