/lit/ - Literature

>>8885774
Political from a military perspective, not psychological, and not great writing, but I enjoyed reading the Janissaries series.
Humans are treated and bred as peacekeeping slaves by a confederation of alien species, and Earth is left wild as a gene stock to keep the slave breeds viable.

On the psychological end, but without alien species, Tau Zero was interesting, if a little swampy at times. An intergalactic colony ship uses sparse matter as fuel, accidentally runs into a nebula, devouring a bunch of matter all at once and is forced to keep accelerating. Relativity, just the contemplation of relativistic consequences, messes with the heads of the crew as they're trying to come up with acceptable ways to deal with their situation. (trigger warning, Sweden actually managed to take over the world)