Captain O'Neill 5RAR's Intelligence Officer Briefing the Diggers 1st Tour
Captain O’Neill briefed 5RAR soldiers before operations because his role as battalion intelligence officer required him to provide the most up‑to‑date enemy information, terrain analysis, and likely threats including:
To give soldiers current enemy intelligence
— Viet Cong unit locations
— Recent contacts
— Booby‑trap patterns
— Likely ambush points
— Expected resistance levels
To reduce casualties
Accurate intelligence briefings were one of the few tools available to mitigate:
— mines
— tripwires
— close‑range engagements
— village‑based VC activity
This was critical in Phuoc Tuy Province, where the enemy blended into the civilian population and used complex terrain. He maintained updated situation maps, advised on patrol planning, interpreted captured documents, and coordinated closely with the battalion commanding officer. His work ensured that platoons deployed with a clear understanding of enemy patterns, terrain risks, and likely contact points.
Reference:
Vietnam A winnable War? online,https://press-files.anu.edu.au/downloads/press/n1879/pdf/ch02.pdf
DVA (Department of Veterans' Affairs) (2026 ), Robert O'Neill's story, DVA Anzac Portal, accessed 3 March 2026, https://anzacportal.dva.gov.au/stories/oral-histories/robert-oneills-story