MBERA, Mauritania (AP) — The men move in rhythm, swaying in line and beating the ground with spindly tree branches as the sun sets over the barren and hostile Mauritanian desert. The crack of the wood against dry grass lands in unison, a technique perfected by more than a decade of fighting bushfires.

There is no fire today but the men — volunteer firefighters backed by the U.N. refugee agency — keep on training.

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