During the Vietnam war what year dud they start using white name tags and why in some images do some soldiers have their rank displayed but some do not?

by Ungratetul_Fork
RonPossible

The order to use the black tape with gold "US ARMY" came on 27 Oct 1953. The white name tape with black letters was initially a local commander directive in Korea in the early 50s and later Army-wide.

On 14 July 1966, the regulation was changed so that both tapes would be OG-107 olive green with black letters.