I Have a Manor in the Post-apocalyptic Era - Chapter 233 – Military?

A world where mana density was extremely abundant. Because of that, the world connected to a special place through an ancient gate—the World of Beasts. Through this connection with beasts, mankind became superhuman, wielding power capable of tearing apart sky and ground.However, too much of anything is never a good thing. Countless dungeons appeared across the rifts… and demons.Rocky Stephens, the first son of a Great Clan, the reincarnator, carrying memories from another world.… yet also a useless piece of trash. No one even remembered his name. His parents died. Betrayed by the branch clan, his beast was killed. He lived in a phase he had never dreamed of—a nightmare.When a second chance came, he returned to the World of Beasts… and awakened a system that could see through all Beasts’ training paths!With the system, his beast could level up like the wind… it could learn and upgrade its skills on its own, and even more.

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.

Gu Jiuyi accidentally time-traveled to ancient times, which was already quite inconvenient, but then she also encountered a great disaster. With no other choice and to survive, Gu Jiuyi had to cling tightly to the benefactor’s leg. Following her young benefactor, she fled the famine without panic. How to deal with disease, hunger, wild beasts, and evil people all at once? Bring it on, let’s showcase our ten all-around abilities, plus the system space, everything can be crushed (Xie Zhan: You can’t even cook properly, yet you claim to have ten all-around abilities? Where’s your face?). We can even lead everyone to prosperity and enjoy royal provisions.When Gu Jiuyi was enjoying the happiness of being a single wealthy lady, her young benefactor cornered her against the wall: Come with me to the palace, I’ll make you my consort.What the heck? I don’t want to engage in palace intrigues!

Her first encounter with Qin Sijue is an unexpected one. While trying to hide from her pursuers, she accidentally barges into his changing room. Yet, their paths crosses again fatefully—after a fake marriage, she legally becomes his bride. She imagines that they will only interact before the agreement ends, after which they would have nothing to do with each other. However, Qin Sijue comes over with two red booklets—their wedding certificate. “Take them for an appraisal and see if they’re real”.