''IF YOU ladies leave my island,'' screams Gunnery Sergeant Hartman to his fresh recruits in Full Metal Jacket, ''if you survive recruit training, you will be a weapon … But until that day you are pukes. You are the lowest form of life on Earth. You are not even human … beings. You are nothing but unorganised grabastic pieces of amphibian shit.''

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Ship-shape...Jodie Low on board HMAS Ballarat.

Basic training for Australian troops might still begin with gruelling obstacle courses and day-long marches through the bush, but for some in the Defence establishment, the drill master has lost the buzz cut.

Jodie Low, the blonde model and fitness celebrity who once starred on Foxtel's Aerobics Oz Style, is on contract to keep Australia's fighting personnel trim and taut.