In 1999:

• youths who reported participating in violence during the past year were more likely to use alcohol and illicit drugs during the past month than youths who did not report past year violence.
• 18% of youths who had participated in a serious fight at school or work reported past month use of illicit drugs compared with 7 of youths who had not participated in a serious fight during the past year.
• veterans accounted for more than 65,000 admissions for substance  abuse treatment.
• the criminal justice system was the most common source of drinkers referrral for all veterans.
• 44% of heavy drinkers aged 18 to 25 had used illicit drugs in the past month compared with 26% of binge’ drinkers (persons who had five or more drinks on the same occasion at least once in the past month) in the same age group.