Simple Definition of counterespionage
: the activity of preventing or stopping enemies from spying
Full Definition of counterespionage
: the activity concerned with detecting and thwarting enemy espionage
Examples of counterespionage
He was involved in counterespionage against Germany in World War II.
First Known Use of counterespionage
Learn More about counterespionage
Britannica.com: Encyclopedia article about "counterespionage"
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