Psychological warfare refers to the use of propaganda against an enemy, supported by such military, economic and political measures as may be required.

心理战是指利用宣传抗敌，并根据需要辅以军事、经济和政治手段。

Psychological warfare is of ancient origin.

心理战具有悠久的历史。

Psychological warfare is regarded as an integral part of the art of war.

人们认为，心理战是战争艺术的基本组成部分。

来源同文世纪翻译，转载请注明出处！