There can't be many Hollywood comedies about the war in Vietnam. There's MASH (1970) set in Korea, but that's about educated medics. So this irreverent Australian story of working class larrikins getting by in 'Nam while squeezed between boredom and bloodshed, brings a different mentality to the 1970s war picture.
William Nagle's source novel was a bestseller down under. His characters are in the Aussie SAS, though the author was a cook, which gives an idea of how unheroic this is. The soldiers are usually gambling or drinking Fosters from an esky, between a few brief forays into enemy territory, which seem to have no purpose.
There may be little of the soul searching and angst of the many US blockbusters about the conflict and its consequences... and there's no soundtrack of contemporary hits. But the themes are the same; the folks back home don't want to hear about the war and none of the soldiers will be acknowledged on their return.
The men make a likeable mob, with Graham Kennedy the purveyor of pessimistic wisdom, Bryan Brown as a laconic, inscrutable bogan while John Jarratt plays the new recruit whose letters from home are drying up. The knockabout banter leaves an impression of futility, and of working class kids getting stiffed yet again.