保ほ安あん庁ちょうほあんちょうFreq.FrequencyTop 100,000Meanings1nounNational Security Board (1952-1954)historical termHistorical term for the Japanese government agency that existed from 1952 to 1954, predecessor of the Defense Agency (防衛庁).See also: 防衛庁保ほ安あん庁ちょうは1952年にせつりつ
