I Told You To Manage The Reserve Unit For Me Instead Of Turning It Into A Special Troop - Chapter 11

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.

"The boy has no powers," they claimed.

Vincent Strider was a gun for hire who made a living by killing whoever it was his clients wanted dead. But during one mission, he died in a fierce gunfight. However, death was not the end for him. Vincent found himself reincarnated in another world, facing a floating interface that flickered before his eyes.[Synchronizing Host!][Military System initializing.]Vincent found out that in this system he received, he can summon soldiers, tanks, aircrafts, and even warships! This is going to be exhilarating.

Gu Shishi, a master of traditional Chinese painting, transmigrated into the role of a cannon fodder in a cliché novel.

The cannon fodder female supporting character was switched at birth. She had barely spent a few days with her biological parents before she was tossed into the wolf’s den by those same parents. Her parents, having no heart to send their fake daughter with a heart disease to live a hard life, forced the real daughter into becoming the replacement. Gu Shishi was sent away to marry the big villain – the rumored evil, cruel, and wife-cursing first young master of the Huo’s.

On the very first day that she had transmigrated, she had to face her fated tragic death….

Luckily, she had also inadvertently discovered the path to altering her fate!

— The more gifts she received from the big villain, the longer she could live and the more cheats she would gain!

System:

(Wealthy Housewife System, Initiated!)

(Remaining Life: 8 minutes and 56 seconds)

(Recharge to extend your life.)

(Method of Recharging: Receive Money or Valuables from Wealthy Husband.)

(Received DIOR Bobbin Net Smock x 1, recharge value: $15,000!)

(Received FENDI Black Hooded Sweater x 1, recharge value: $10,160!)

(Received Givenchy Single Strap Mini Floral Print Pleated Skirt x 1, recharge value $180,695!)

(Recharge Successful!)

(Note: 24 hours additional life for every $1,000.)

- Description from Novelupdates