veteran of the Vietnam era
(2) The term “veteran of the Vietnam era” means a person (A) who served on active duty for a period of more than 180 days, any part of which occurred during the Vietnam era, and who was discharged or released therefrom with other than a dishonorable discharge, or (B) who was discharged or released from active duty for a service-connected disability if any part of such active duty was performed during the Vietnam era.