Operation Frederick Hill was a security operation during the Vietnam War in Quang Tin Province, that took place from 18 March 1969 to 28 February 1971.
Operation Frederick Hill was a security operation during the Vietnam War in Quang Tin Province, that took place from 18 March 1969 to 28 February 1971. (en)
Operation Frederick Hill was a security operation during the Vietnam War in Quang Tin Province, that took place from 18 March 1969 to 28 February 1971. (en)