Starship Troopers — Robert A. Heinlein

COSMIC COMBAT

The Mobile Infantry of the startling twenty- second century attracts young and eager-to serve Johnnie Rico. He enters basic training as a naive youth who must learn quickly how to cope with every soldier's problems of courage, discipline, and loyalty.

But he barely learns the value of freedom before he finds he must fight for it bravely--in fantastic interplanetary battles against the most incredible adversaries of the future.