All 3 Uses

reconnaissance
in
Flags of Our Fathers
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So it was with great alarm that on July 4, 1942, American reconnaissance discovered a Japanese construction brigade building an airstrip on Guadalcanal, a jungle island near the southern tip of the Solomon Islands chain, to the northeast of Australia.†
Chpt 3. *
The general was studying reconnaissance photographs that showed that every square inch of the island had been bombed.†
Chpt 6.
In describing the events of February 23, the report covered the reconnaissance patrol of the early morning.†
Chpt 11.

Definitions:

(1) (reconnaissance)
the act of exploring or information produced by such exploration -- especially for military purposes
(2) (meaning too rare to warrant focus)