All 3 Uses

personnel
in
Flags of Our Fathers
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The movement of over 100,000 men—Marines, Navy support personnel, Coast Guard units—across four thousand miles of ocean for three weeks is a triumph of American industry galvanizing itself in a time of great national peril.†
Chpt 6.
Military personnel listening to the flight radio network from the ships could not only see Dollins go down; they could hear his last words into his microphone.†
Chpt 7. *
Thousands of Marine and Navy personnel had been watching the patrol as they climbed to the volcano's rim.†
Chpt 11.

Definitions:

(1) (personnel)
people employed by an organization or members of the military
(2) (meaning too rare to warrant focus)
Personnel may refer to the department of a firm that deals with what today is more commonly called Human Resources and which acts as a company-wide interface with employees.