"Violent offending by UK military personnel deployed to Iraq and Afghanistan: a data linkage cohort study"
Lancet Mar 16
http://www.lancet.com/journals/lancet/article/PIIS0140-6736(13)60354-2/fulltext
"Interpretation

Alcohol misuse and aggressive behaviour might be appropriate targets for interventions, but any action must be evidence based. Post-traumatic stress disorder, though less prevalent, is also a risk factor for violence, especially hyperarousal symptoms, so if diagnosed it should be appropriately treated and associated risk monitored."