There is a FaceBook page titled Korea - Dioxin/A.O. - Buddy Letters where you can post your unit, dates, and any info that would help fellow vets to prove they were exposed to chemicals. You can then use others' letters if you need to make a claim. I need help from anyone from the 1st and 31st arty during the dates 1968 to 1970. The VA denies that we spent time at the Z and that our camp was sprayed. I would really appreciate your help.