Fort Carson officials are defending their treatment of soldiers who seek or need mental health help after a tour in Iraq or Afghanistan.
Several soldiers told National Public Radio that they were denied help or mistreated after they were diagnosed with Post-Traumatic Stress Disorder.
But officials at Fort Carson say they screen soldiers returning from war and maintain a clinic for anyone who needs the help.
After soldiers complained to NPR, US Senators Barbara Boxer, Barack Obama and Christopher Bond asked the Department of Defense to investigate.
The number of soldiers diagnosed with PTSD is climbing. The Army predicts 628 will report the ailment this year, compared with 572 last year and 356 the year before.