This is a photograph of a road train in South Australia, at a rest stop along the Stuart Highway, somewhere between Glendambo and the mining outpost of Coober Pedy. The photograph was taken just before the sun went down. My vehicle and this road train were the only ones at the rest stop, with no one else for miles. I didn't know what the road train was carrying. I wondered why this particular road train was painted in camouflage colours. I wanted to ask the driver, but talking to strangers in the middle of the desert didn't seem like the best idea.