If I recall .. that song came out in the mid 70's
I don't know if anyone mentioned it yet but the Yellow Ribbon campaign was started for the Iranian Hostages.
You guys must not be old enough to remember the John Ford movie, starring John Wayne, made in 1949. The title was "She Wore a Yellow Ribbon".
The words to the song are at:
http://www.ezfolk.com/lyrics/qrst/s/she-wore-a-yellow-ribbon/she-wore-a-yellow-ribbon.html