Fearless agents were recruited for espionage missions against enemy spies.

American ships such as the Maddox went on espionage missions in the North's coastal waters.

He has been with M.I.9 for many years and has been involved in several espionage missions.

MI6 tried to cover up this espionage mission.

"Which is what makes it perfect for espionage missions."

This must be the most public espionage mission Starfleet has ever launched.

Shi Xiu contributes greatly to the victory for his espionage mission.

After a short period in the military, he was sent to London on a military espionage mission.

In early 2010, it was hinted that Anna and Robert were once again doing espionage missions.

The Cold War introduces the ability to fire nuclear missiles in the main map and initiate espionage missions.