VeteransUnited States Department of Veterans AffairsUnited StatesVeterans HealthHospitals, VeteransVeterans Disability ClaimsAfghan Campaign 2001-Iraq War, 2003-2011Persian Gulf SyndromeGulf WarVietnam ConflictCombat DisordersWarMilitary PersonnelStress Disorders, Post-TraumaticIraqDefoliants, ChemicalChemical Warfare2,4,5-Trichlorophenoxyacetic Acid