Old Man's War

A good war book. I don't like war books. They all fell the same to me. The sci-fi twist is strong, but far from enough.

Abusive drill sergeant? Check. Intense military training? Check. Many fights with enemy armies? Check. Realization of how cruel and unfair war is and how that makes you feel like a monster? Check.

The first part of the book tells the story of John Perry, a 75 years old man who decides to join this space army, from which no one knows anything about except that they are very scientifically advanced. People sign up for this army because they assume that if they need old people to fight a war, they must have found a way to make them younger again.

So, John makes some other elderly friends in this journey, and at last, they do have a way to make them fit for fighting a war. This first part ends in space, where all the recruits are testing their new abilities and becoming accustomed to their new bodies.

The second part is your usual military story. Humanity is not alone in the universe, and we must fight to expand if we are to keep relevant in the universe. There is many battles with unusual alien species, very well described. There is this race of one inch tall creatures, mold people and some other warmongering monstrous races.