He held up a hand as the Secretary of the Air Force began to speak.

In 1950 he was made Under Secretary of the Air Force.

That's why the Secretary of the Air Force picked me.

In addition she served as military assistant to the acting Secretary of the Air Force.

"You know, perhaps, that the Secretary of the Air Force was murdered yesterday morning."

"The Secretary of the Air Force bought the farm yesterday."

He served as Under Secretary of the Air Force from 1953 until 1957.

He served as the Secretary of the Air Force between 1977 and 1979.

Chain became the military assistant to the Secretary of the Air Force in 1978.

The Secretary of the Air Force said the new bomber was worth it, whatever the cost.