Violent sex crimes committed by active US Army soldiers have almost doubled over the past five years, according to an Army report.
Reported violent sex crimes increased by 90 per cent over the five-year period from 2006 to 2011.
There were 2,811 violent felonies in 2011, nearly half of which were violent felony sex crimes. Most were committed in the United States.
One violent sex crime was committed by a soldier every six hours and 40 minutes in 2011, the Army said, serving as the main component of an overall increase in violent felony crimes.
Violent sex crimes committed by US Army troops increased at a rate that consistently outpaced the national trend, a gap that is expected to continue to grow, the Army said.
The top five violent felony offences committed by soldiers in 2011 were aggravated assault, rape, aggravated sexual assault, forcible sodomy and child pornography.
Soldiers suffering from issues such as post-traumatic stress disorder (PTSD), traumatic brain injury and depression have been shown to have higher incidences of partner abuse, according to the report.
Soldiers with PTSD are up to three times more likely to be aggressive with their female partners than those without such trauma, the report said.
The report also said family abuse cases are typically under reported.
As the largest branch of the US armed forces, the Army has done the bulk of the fighting in Iraq and Afghanistan, including years of extended duty and repeated deployments.
(Source: ABC News website)