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Disasters always have been a part of life, whether caused by unavoidable natural events or by avoidable, man-made events. Being rendered helpless by such events has caused fear and concern in all periods of history. To some extent, a disaster is expected, but there are varying degrees of uncertainty as to how and when it will occur. The occurrence of a disaster creates varying degrees of chaos combined with a mismatch between resources and needs. Therefore, in order to restore an affected society back to its pre-event status requires extraordinary efforts.