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United states under secretary of the air force

second-highest ranking civilian official in the Department of the Air Force of the USA

Pronunciation
/juːˈnʌɪtɪd steɪts ˈʌndə ˈsɛkrɪtəri əv ðɪ ɛː fɔːs/
/juˈnaɪdəd steɪts ˈəndər ˈsɛkrəˌtɛri əv ðə ɛr fɔrs/