I was Caught up in a Hero Summoning, but that World is at Peace (WN) - Chapter 1919: Ship Party ㊳

A sudden and inexplicable transformation has caused the entire global population to be reborn in the struggle for survival on the Continent of Overlord.Each person reborn on the Continent of Overlord is randomly reincarnated as a species - some come to life as weeds only to be trampled to death by passing monsters, while others emerge as dominant beings like dragons, naturally ruling the skies...The Dark Creatures invade this other world with reckless abandon, instilling fear and dread across the realm.Reborn the night before the transition to the Continent of Overlord, Charles activates the Zerg Clan System, becoming the Overlord of the Zerg Clan!While others are still grappling with the darkness of the Continent of Overlord, Charles has already constructed a fortress spanning the entirety of Zerg Clan territory and casually wipes out countless Dark Creatures with a burger in one hand and a cola in the other....【Ding! A female has been detected as 100% loyal to the Host. The Zerg Clan System is awakening!】Zerg Queen Catherine: “Master, I've just bought a very thin nightgown. Would you like to experience it personally?”Snake Queen Medusa: “Master, I've already trained these troops for you. When will you train with me?”Snake Emperor Yggdrasil: “Cursed Medusa, don't think of stealing my master!”Elf Goddess Eve: “Silence, all of you! I'm the only true queen, you all are just concubines.”While everyone else struggles to survive and defend against the Dark Creatures...Only Charles raises the divine flame, waging war across the stars!

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.

I became a miserably weak aristocrat in the web novel ‘SSS-Class Knight’.

With a body that can drop at a moment’s notice, no less.

‘Let’s live for now. Let’s fight on.’

I have to survive, even without knowing the ending.

“You’re pregnant, young master.”Valentin Wiche, the beloved only son of the Viscount Wiche family. One day, he realizes that he has been reincarnated as the villainous supporting character in a novel he read in his previous life. To avoid his miserable fate, Valentin seduces an alpha at a ball.“Your scent is truly dizzying…”Did that alpha enjoy their night together that much? He starts showing tremendous obsession.‘Where did this come from?’‘I must have this.’He only did it to avoid the terrible ending of the original story, but the result is pregnancy? Moreover, the identity of the child’s father was someone even more incredible than he thought – Reynard Dennox, the only heir to the notorious Dennox ducal family and a naval hero of the Heston Empire.On top of that, true to his reputation as a klutz, Valentin’s pregnancy is immediately discovered….“Why the sudden ring…?”“What do you mean why? We even have a child on the way, so we need to get married quickly.”