Based on six interviews conducted by John T. Mason, Jr., from May 1975 through November 1975 The volume contains 657 pages of interview transcript plus an index and appendices. The transcript is copyright 1978 by the U.S. Naval Institute; the restrictions originally placed on the transcript by the interviewee have since been removed.
Admiral Rivero came to the Academy from Puerto Rico and after graduation and sea duty, attended MIT, receiving a master of science degree in Electrical Engineering. During World War II he served in the cruisers San Juan and Pittsburgh; he participated in the landings at Guadalcanal-Tulagi, a raid on the Gilberts, Battle of Santa Cruz Islands, South and Central Pacific Campaigns, Solomons, capture of the Gilbert Islands, Kwajalein, Iwo Jima, and Okinawa. In 1948 he was on the staff of Commander, Joint Task Force Seven, during atomic weapons tests in Eniwetok. During the Cuban Crisis in 1962-63 he was in command of Amphibious Force Atlantic. In 1964 he became VCNO under Admiral McDonald; later was CinC, Allied Forces, Southern Europe. Following his retirement in 1972, he was named as the U.S. Ambassador to Spain, earning him the sobriquet of the "Ambassador with the Seven League Boots."