The Combat Stress Intervention Program (CSIP) is a 3-year United States Department of Defense-funded research program to study mental health issues experienced by veterans returning from Operation Iraqi Freedom and Operation Enduring Freedom. The $1.5 million study, which is managed under the Military Operational Medicine Research Program, focuses on Combat Stress Disorder, Posttraumatic stress disorder, and other post-deployment transitional challenges. The study also focuses on developing resources and solutions for such veterans.