LJ Kummer's Fun as Hell is a great kindle single. A fast read about a journalist and his girlfriend who take a training course intended to show civilians what war is all about.
Kummer share the tale of journalist coming to understand why he writes. As he and his surgeon girlfriend experience a rigorous military training program, the protagonist each exercise helps him understand why he has chosen his career.
Kummer doesn't leave you with a firm ending, but he manages to use the short story telling format well and leaves you thinking about what comes next.