Counterespionage definitions

counterespionage

espionage directed toward detecting and thwarting enemy espionage. See intelligence (in government operations).
Found on http://www.britannica.com/eb/a-z/c/149

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counterespionage

[n] - spying on the spies
Found on http://www.webdictionary.co.uk/definition.php?query=counterespionage

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counterespionage

noun spying on the spies
Found on https://www.encyclo.co.uk/local/20974

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counterespionage

the detection and frustration of enemy espionage.
Found on https://www.infoplease.com/dictionary/counterespionage

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