Naruto: Reborn as Orochimaru - Chapter 292

The journey to the martial peak is a lonely, solitary and long one. In the face of adversity, you must survive and remain unyielding. Only then can you break through and continue on your journey to become the strongest. High Heaven Pavilion tests its disciples in the harshest ways to prepare them for this journey. One day the lowly sweeper Kai Yang managed to obtain a black book, setting him on the road to the peak of the martials world.

- Description from novelupdates

1946

Peggy Carter walked to the Brooklyn Bridge and poured Captain America’s blood sample under the bridge with her own hands. “Goodbye, dear.” A woman’s voice suddenly sounded beside her, as if it had come out of nowhere. “He will come back.” At this time, Carter’s face was full of tears, and he looked at the woman in black with a black hat in his pocket very puzzled, “Ha, I’m sorry to scare you suddenly. Seeing what you said Yes, I just want to persuade you.” After finishing speaking, he looked towards the bridge and looked at the sea view in the distance. Carter, who was very vigilant, felt relieved after hearing such an explanation, wiped away his tears, and wanted to leave. “I have a friend ……” The mysterious woman suddenly said another word, interrupting Carter, which made her feel uneasy.

“I have a friend who wants me to tell you that I look forward to meeting you.” As she said that, Peggy’s uneasiness increased by three points, and she quietly touched the hidden gun.

“In the future, live well…”

“Who are you!”

The mysterious woman ignored Peggy Carter and immediately turned around. Peggy was anxious and immediately drew out her gun.

The woman took out her hand from her pocket, and there were six gemstones of different colors inlaid in her hand, clenched into a fist. The mysterious woman disappeared in front of Peggy’s eyes, but the last words “for the captain” still linger in Peggy’s ears.

Year 2008.

Daisy officially presented the full plan to the Security Council

“The world needs more heroes”

- Description from novelbuddy

Master said, the woman I held in my hands, I must protect for the rest of my life.

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.