On December 18, 1972, two sorties of hulking US B-52 bombers roared off from the U-Tapao airfield in Thailand and Andersen Air Force Base in Guam to begin what one Air Force officer called "the largest operation in the history of air power."
원문출처 : https://www.cnn.com/2019/02/26/photos/hanoi-summit-changes-intl/index.html
원문출처 : https://www.cnn.com/2019/02/26/photos/hanoi-summit-changes-intl/index.html