Some years ago (20), I read a short story in an anthology where the protagonist is a 20th Century drill sergeant awoken from a cryogenic sleep in the distant future. The human race is extremely pacifist and he has to train a group of humans to be warriors since Earth is facing an impending alien invasion. Great story, but I've lost the books over the years and cannot remember anthology, author or title.
I do remember it was a paperback collection of short stories probably published in the early to late 90s, the story was illustrated with a couple of line drawings showing the newly trained humans dressed in pelts.
Some memorable points include: Written in first person, but you never learn protagonist's name, the leader of the new earth reminds the protagonist of Ben Franklin, the humans are so pacifist that one trainee is notable for having actually have tasted meat, the protagonist reminded me of the drill Sgt from Full Metal Jacket, he makes up derogatory nicknames for his trainees, he finally has to take them into the wilderness to train, a bear kills one, but the other trainees hunt down and kill the bear, there was a great mourning when they're done training and they bring back a number of them who were killed during training, "Ben Franklin" promotes protagonist to General and the story ends before Earth is invaded, but they're now ready for them.