Novel's Extra: I Awakened The Strongest Physique From The Start - Chapter 89 - 88 - Real Justice 1.

Reborn in 2004, facing the age where pigs can be blown up, Lin Xuan, carrying the “Strongest Cottage King System”, started galloping…

- Description from novelbuddy

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.

Ye Gushen and Tang Suiyu were married by imperial decree!Tang Suiyu thought that this cold-hearted and emotionless man married her just because of a marriage contract, but in fact...“Honey, autumn is here...” “Good girl...”The next day, several truckloads of clothes were delivered home.“Honey, green grapes taste good...” “Good girl...”The next day, she acquired dozens of vineyards.“Honey, someone said I don't deserve you!” “Good girl...”The next day, that person, huh, where did they go!A long time later, Mrs. Ye, who was spoiled beyond limits, said that her post-marriage life was overwhelmingly sweet![1v1, both male and female leads are incredibly pure, overwhelming spoiling]

Ascension of the Hollow Star