'Battle for the North is the second in The Kimberley Trilogy of Australian adventure novels which span the first, second and, yet to come, third world war. It reunites the heroes and heroines of For Freedom's Cause -Dan, Charlie, Elspeth Liza and Alice, in frustrating Japanese espionage plots and raids into northern Australia during World War 2. The action takes place in the Kimberley wilderness and celebrates the daring and heroism of mounted North Australian Observer Unit patrols, nicknamed the 'Nackeroos' or 'Curtin's Cowboys.'
'The North Australia Observer Unit, formed in 1942 to protect the north of Australia from a Japanese attack, consisted of around 500 men and their aboriginal guides, stretched from Wyndham to Cape York, and was headed by the anthropologist William Stanner.' (Publisher's blurb)