Clan Leader: My strength equals to that of the entire clan - Chapter 39 - : Chapter 39: The Art of Fireball 1

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.

He was a school bully and she was a straight A student. One day, she received a message that he wanted to meet her after school. She was very scared of being bullied, so she sought help from her teacher, who was also his father. Therefore, his father came to meet him after school with a broom on hands and beat him up.“You little brat! How dare you bully the top student in our class! Just wait and see how I'll punish you!” said his father angrily.“No! Dad! This is a mistake! I just wanted to pursue her!”“You're clearly not good enough for her! Stay far away from her!”...Years later, in her wedding dress, she said to her best friend, “My husband used to be a school bully. He said that he was beaten up by his father on the first day he was planning to pursue me. Then, he was warned not to get in the way of my pursuit of Tsinghua University.”“Too bad! And what happened next?”“He also got into Tsinghua University.” She smiled.

The Ye family’s foolish girl is reborn one day!With an omnipotent divine cauldron and a spiritual space in hand, she is no longer the good-for-nothing, abandoned girl that everyone bullies at sight!She is so invincible with both medicine and poison that even a divine doctor will be nothing beside her, Spiritual beasts beg her to make contracts… Oops, excuse her, even the Beast God calls her Boss.When her scumbag father dares to abandon his wife and daughter, she wrecks and destroys his family.When people dare to bully or humiliate her, she would return that favor a hundred times greater.Reincarnated as a human once more, she returns like a powerful sovereign. However, she never expects to be involved with the devilish and bloodthirsty him.Originally meant to be a decisive Ghost King, he ends up reincarnated into a ditsy, cute and harmless hostage prince in a neighboring rival nation…

An Apocalypse descends—as a lethal super-virus wipes out most of the human population. It took less than a day for the world to change forever—bringing mankind to its knees.It’s a time of misery and death for most, however, there are some who are lucky. Zane Graves, who came across a “Blood Crystal” is given an ability: [Dead Man Walking]—which grants him a special power, and so setting him off on his path to the top!