Awarded to any member of the Armed Forces who, from January 2, 1946, as a member of a U.S. Antarctic expedition, participates in, or performs services in direct support of scientific or exploratory operations on the Antarctic Continent. Qualifying service includes personnel who participate in flights or naval operations supporting operations in Antarctica. The medal may also be awarded to any U.S. citizen who participates in Antarctic expeditions under the same conditions as Service personnel.

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