I had the pleasure of getting to know Gaz (not his real name) while he was working as a private security consultant in Malaysia during the very late '90s. An extremely low-key, soft-spoken individual, you would never have guessed that he had been through the adventures described in this book. However, over the course of our too-brief friendship - which included several long nights of late drinking and storytelling (him obviously telling, me listening) - I came to have no doubts as the the authenticity of his experiences.
In light of today's still-ongoing war in Afghanistan, it seems odd to read about this real life Rambo fighting alongside rather than against the Afghan tribesmen described here. But in fact, these were more along the "good guy" model of the late Shah Ahmad Masood than the subsequent fundamentalist fighters of the Taliban.