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When I was still in the trucking business, I remember drivers quitting the state side driving jobs, and going to Iraq, and Afghanistan where they could stay 6 months and make $250,000.00 to $350,000.00 in that 6 months drivin for government contractors."
Probably long hours, plus the politicians insisted upon some kind of high cost union. Then there was always the IEDs buried in the roads..which likely caused more dead and injuried trops in Iraq, than any other single item.