The Marine Corps had eight suicides in July, up from six in June. The July figure pushed its total for the year so far to 32 - equal to the Marines' total for all of 2011.
The Air Force said that it had six in July, compared with two in June. The Navy had four in July but its June figure was not immediately available.
The Army's suicide numbers have been higher than the other services, in part because it is substantially larger than the Marine Corps, Navy and Air Force. The Army also has had more members in combat over the past decade. It was the main ground force in Iraq and has a preponderance of the U.S. troops today in Afghanistan.
For the first seven months of 2012, the Army recorded 116 suicides among active-duty soldiers. If that pace were maintained through December the year's total would approach 200, compared with 167 for all of 2011.
"Suicide is the toughest enemy I have faced in my 37 years in the Army," said Gen. Lloyd J. Austin III, the Army's vice chief of staff, who is spearheading his service's efforts to find ways to halt the surge in suicides.
Suicidal behavior in the military is thought to be related to cumulative stress from combat duty, but it also is believed to be linked to a range of other pressures such as marital and financial problems as well as health issues.
Of the 26 active-duty soldiers who committed suicide in July, all were male and only two were officers, according to figures provided by the Army's office of public affairs. Thirteen were married, 10 were single and three were divorced. A breakdown of the deployment history of 14 of the 26 showed that six had never been deployed, seven had been deployed between one and three times, and one had been deployed six times.