A clandestine operation is an intelligence or military operation carried out in such a way that the operation goes unnoticed by the general population. The United States Department of Defense Dictionary of Military and Associated Terms (Joint Publication JP1-02, dated 5 January 2007) defines `clandestine operation` as `An operation sponsored or......
[n] - an intelligence operation so planned and executed as to insure concealment
clandestine operation A government, or military, intelligence operation so planned and executed as to insure concealment.
noun an intelligence operation so planned and executed as to insure concealment