The United States provided Supply intelligence and logistical support Supporting , including aerial refueling and search-and-rescue for downed coalition pilots .

From 1941 until 1945 , the United States established Building numerous and extensive facilities for air and sea traffic in Greenland , as well as radio beacons , radio stations , weather stations , ports , depots , artillery posts , and search-and-rescue stations .

Chinese ships assisted Assistance in the search-and-rescue mission , ultimately rescuing 330 fishermen from 22 boats ; however , 21 bodies were found Know , and the remaining 220 missing were presumed killed Killing .