I Was Only 19 (A Walk in the Light Green)
This most famous song of the Australian group Redgum is about Vietnam veterans. It was produced by Trevor Lucas and was released as a single and on Redgum's live LP Caught in the Act. Trevor performed I Was Only 19 with Fairport Convention in 1985 at the last Cropredy Festival he attended; sadly this recording in not available.
Sorry, I can't show the lyrics here as I don't have the copyright owners' permission to publish them. But please feel free and ask me to send you the song's lyrics.