The Department of Veterans Affairs reports that 11 to 20 percent of Iraq and Afghanistan war vets suffer from PTSD, as do 10 percent of Gulf War veterans and 30 percent of Vietnam War veterans.  Military veterans can access free, licensed mental-health counseling through the Give an Hour website – giveanhour.org – for which 6,500 mental-health professionals have volunteered more than 70,000 hours of therapy to vets and their families.