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- ONTOS in Vietnam
ONTOS in Vietnam
Marine Corps Support using six M40 Recoilless Rifles
William Grebenik
August 31, 2023
ONTOS - From a US Marine Corps Officer; "…the most effective of all Marine supporting arms…"
William Grebenik
August 31, 2023
ONTOS - From a US Marine Corps Officer; "…the most effective of all Marine supporting arms…"