The report said, "Iraq was the most common deployment location for both (suicides) and attempts."
The increases for 2006 came as Army officials worked to set up a number of new and stronger programs for providing mental health care to a force strained by the longer-than-expected war in Iraq and the global counterterrorism war entering its sixth year.
Failed personal relationships, legal and financial problems and the stress of their jobs were factors motivating the soldiers to commit suicide, according to the report.
"In addition, there was a significant relationship between suicide attempts and number of days deployed" in Iraq, Afghanistan or nearby countries where troops are participating in the war effort, it said. The same pattern seemed to hold true for those who not only attempted, but succeeded in killing themselves.