The researchers said outdated prevention methods combined with staff shortages and a stigma against alcohol and drug-related disorders means the Defense Department is not not keeping up with a public health crisis.

The study found nearly half of military members and families "binge drink" meaning they consume four or five drinks or more at a time.

One in every five active-duty service members say they are heavy drinkers.

The Pentagon requested the report. A media representative said officials were analyzing the recommendations.

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