We are creating the world's most trusted encyclopedia and knowledge base. Once you join us and log in, you'll be able to edit this page instantly!

From Citizendium, the Citizens' Compendium

A clandestine operation is one whose existence is known only to its sponsor. Espionage is a classic example; if the fact of espionage were known, it could be countered.

In contrast, a covert action may start out as clandestine, but, when action has been taken (e.g., a force infiltrates clandestinely to blow up a bridge), the fact of the action is not in dispute. What remains in question is the identity of the sponsor.