More like The Cole Protocol

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Old Man's WarSeries
series16 books2005
Science fiction and military science fiction, adventurous in tone, about war, set in far future and space.
“Sign a document at 65, saying you intend to join up 10 years later.”
from the catalogue
Start with Old Man's War →
CoDominiumUniverse
universe98 books1971
Science fiction and military science fiction, set in far future and other star systems.
“The body of work runs along a few hard threads rather than one line.”
from the catalogue
Start with The Mote in God's Eye →
includes Moties, Falkenberg's Legion, War World, Laurie Jo Hansen
Known SpaceUniverse
universe142 books1964
Science fiction, about aliens, set in far future and space.
“Give a clever species a few centuries and a working fusion drive, and it will fill the sky with problems.”
from the catalogue
Start with Ringworld →
includes Man-Kzin Wars, Ringworld, Fleet of Worlds
UpliftUniverse
universe13 books1980
About uplift.
“No species, the Galactics insist, ever climbs to sapience alone.”
from the catalogue
Start with Sundiver →
includes Uplift, Uplift Storm
Starship TroopersNovel
Robert A. Heinleinstandalone novel1959
About coming of age.
PolityUniverse
universe72 books1992
Science fiction and space opera, set in far future and other star systems.
“The Quiet War is already over by the time you arrive.”
from the catalogue
Start with Shadow of the Scorpion →
includes Ian Cormac, Transformation, Spatterjay, Rise of the Jain, Time's Shadow