That's what King George said about a bunch of rough-cut frontiersmen.
It's also what we said about the Viet Cong. What we've been saying so far about Al Queda, Boko Haram, ISIS. And a bunch of others.
You Aussies and others should read up about asymmetrical warfare. I'm not anywhere near being one of those people we've cultivated in the USA who are opposed to anything the government does, but I respect what they might do and I fear them. Maybe you should, as well.
When Mao set off on his long march, he had a ragtag group of followers. Same with Fidel Castro.
Same with our founding Fathers. They were undisciplined, untrained, poorly equipped, sometimes poorly led, often half starved, sometimes almost defeated. But they won.
The problem I see with Aussies, Europeans, and a lot of others (including our present leadership) is arrogance and pessimism.
When World War II Russia, Europe, China, India --most of Asia, in fact -- and even the United States faced certain defeat. Thanks to some audacious leaders and millions of pi$$ed-off Americans, Brits, Australians, New Zealanders and some desperate Russians, we won that war. The mightest armies ever marched triumphantly to victory after victory until a bunch of farmers and shopsmiths took up arms against the Nazis, Imperial Japan and the Italian Fascists.
So you can take your defeatist, namby-pamby defeatist attitude and shove it up where the sun don't shine, but don't lecture us about standing up against tyranny. If you like being slaves, suffer with it. As for me and most Americans, we'll die with our guns in our hands before we'll live as serfs and die under the yoke of your masters