Dragon's Awakening: The Duke's Son Is Changing The Plot - Chapter 131 - 130 - Purification.

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.

All Things of this World, Turn to Ashes, Flowing Blade-like Flame!

Crossing over to the world of pirates(the one piece world) , in the era of pirates, the Roja from eleven years ago obtained a Sword Soul system that lets him strengthen infinitely and extract various kinds of skills.

Flowing Blade-like Flame (Ryūjin Jakka) , Mirror Flower, Water Moon (Kyoka Suigetsu), Moon Fang Heaven-Piercer (Getsuga Tensho), Thousand Cherry Blossoms (Senbonzakura)……

“If this sword descend, you may be roasted to death.” Roja looked at Akainu in front of him and seriously said.

- Description from novelupdates

Seemingly as if they were waking up from deep slumber, billions of people transmigrated to the Divine Tree Realm.

They now had to plant Divine Trees and produce divine fruits to awaken their supernatural abilities? So that they could fend against the Netherworld invasion!?

Every Divine Tree Master would randomly choose three talents.

Enoch discovered that he could see hidden talent information.

[Hundred Times Amplification (Class: SSS)]: Sunlight Absorption x100, Growth Speed x100, Production Speed x100...

[Fruit of 10,000 Worlds (Class: SSS)]: Your trees could bear Demon Fruits, Cultivation Method Fruits, Life Fruits...

[Spring Rejuvenation (Class: SSS)]: When you produce fruits, you can bury them to grow additional fruit trees. The fruit harvest during the spring season of the following year will be x100!

Choose three ultimate SSS-class talents, and start from zero to grow little saplings into the trees of the world!

Devour the fruits of the world, and become the Supreme Overlord! Command an army of millions and conquer the entire Netherworld!

Everyone would soon realize that Enoch seemed to be playing a different game from them!

Encountering a car crash, the King of Silver Screen, Ye Sinian, was bound to a Cannon Fodder Counterattack System.

After reincarnating for hundreds of lives, he has finally earned enough “travel expenses” to go back home.

However, he didn’t think that the system would suddenly malfunction, making returning back home from then on hopeless.

With the shackles of a millennium broken, Ye Sinian aggressively counterattacked!

Reversing fates while hugging the mentally ill* Lord Seme, he walked towards the apex of humanity!

*Mentally ill – Schizophrenic

- Description from Novelupdates