Operation Windmill Expedition Members Playing in the Snow, by Unknown, 1947-1948, Smithsonian Archives - History Div, Image of Operation Windmill expedition members playing in the snow. Other members are standing on the ship watching the men on the ground. Operation Windmill (1947-1948) was an expedition established by the Chief of Naval Operations to train personnel, test equipment, and reaffirm American interests in Antarctica. The icebreaker in the background of the image is the USS Burton Island (AG-88), signified by the number 88 near the front of the Icebreaker. A second Icebreaker, the USS Edisto (AG-89) was also used during the expedition..