Noun
The practice or employment of spies; the practice of watching the words and conduct of others, to make discoveries, as spies or secret emissaries; secret watching.
Source: Webster's dictionaryIt is essential to seek out enemy agents who have come to conduct espionage against you and to bribe them to serve you. Give them instructions and care for them. Thus doubled agents are recruited and used. Sun Tzu
The only reason that there has been no sabotage or espionage on the part of Japanese-Americans is that they are waiting for the right moment to strike. Earl Warren
The executions of agents, partisans, saboteurs, suspicious people, indulging in espionage and sabotage, and those who were of a detrimental effect to the German Army, were, in my opinion, completely in accordance with the Hague Convention. Paul Blobel
Generally speaking, espionage offers each spy an opportunity to go crazy in a way he finds irresistible. Kurt Vonnegut
There are at present 300,000 bourgeois in the Crimea. These are a source of future profiteering, espionage and every kind of aid to the capitalists. However, we are not afraid of them. We say that we shall take and distribute them, make them submit, and assimilate them. Vladimir Lenin
During my imprisonment in the Soviet Union, I often heard of an imprisoned Swedish diplomat who had been active in Budapest. The Russian authorities were said to have accused him of espionage for the Germans. Wilhelm Mohnke