In their own words and their own extraordinary, never-before-seen helmet-cam battle footage, Australia's fighting men and women lay bare their hearts in an epic series - not just how they waged a war, but why and to what end.

In their own words and their own extraordinary, never-before-seen helmet-cam battle footage, Australia's fighting men and women lay bare their hearts in an epic series - not just how they waged a war, but why and to what end.