Made me think of this.
Operation Deep Freeze I (1955–1956)
As part of the multinational collaboration for the International Geophysical Year (IGY) 1957–58, Byrd was appointed as officer in charge of the U.S. Navy Operation Deep Freeze I in 1955–56, which established permanent Antarctic bases at McMurdo Sound, the Bay of Whales, and the South Pole. This was Byrd's last trip to Antarctica, and marked the beginning of a permanent U.S. military presence in Antarctica. Byrd spent only one week in the Antarctic, and started his return to the United States on February 3, 1956.[43]
https://en.wikipedia.org/wiki/Operation_Deep_Freeze