While others dived for cover - the bravest of the brave went in. Brendan O'Carroll's new book pays tribute to the courageous 'Khaki Angels': stretcher-bearers and other Kiwi frontline medical people who put others before self in two world wars, serving in Gallipoli, Europe, North Africa, Greece, Italy and the Pacific. Khaki Angels also looks at general wartime medical matters: field organisation, what caused death and injuries, what the injuries were like and how they were treated. And we meet some heroes.