DOD Dictionary of Military and Associated Terms.
This Day in Naval History - Aug. 20
From the Navy News Service
1952 - In inter-service air operation at Chang Pyong-ni, Korea, U.S. Navy, Marine and Air Force aircraft destroy 80 percent of assigned area.
1959 - USS Thetis Bay (LPH 6) completes six-day humanitarian operation after floods in Taiwan.
1969 - Navy Seabees and Sailors from Helicopter Training Squadron (HT) 8 evacuated 820 people from Pass Christian, Miss., after Hurricane Camille.