The army used radio broadcasts into enemy territory as a form of 'psychological warfare'.
industrial 'warfare'
guerrilla 'warfare'
(..) Mr. President, in the event of an attack... An attack from who? Y-You just said all our enemies are denying responsibility. Because all warfare is based on deception and there are still plenty we haven't heard from. I just don't feel comfortable showing that kind of force yet. (..)2016 TvShow: Designated Survivor Title: Pilot Season: 1 Episode 1