Is US Army Reservist who served during the Vietnam War a Vietnam Era Vet?

Yes, a U.S. Army Reservist who served during the Vietnam War is considered a Vietnam Era Veteran. The term "Vietnam Era Veteran" generally encompasses anyone who served on active duty in the U.S. Armed Forces during the period defined by the Vietnam War, which includes those who served in the reserves, as long as their service was during the designated timeframe. This designation recognizes their contribution and service during that historical period, regardless of whether they were deployed to Vietnam itself.