He again flew over the South Pole. unseen since his flight over it in 1929. and dropped the United Nations flag at the site. "Operation Highjump" was a challenging project for him to lead and our Navy personnel received invaluable training and our ships underwent rigorous cold weather testing. Also. the political task of consolidating and extending our sovereignty over the largest practical area of the Antarctic Continent was completed. In the years that followed. he became the founding chairman of the Iron Curtain Refugee Committee of the International Rescue Committee. assisting escapees from communist tyranny. He also was cochairman of Operation Brotherhood. giving assistance to the anticommunist government of South Vietnam. Both of these activities were highly commended by the President and Department of State.