While in 1970 McLuhan spoke of World War III as a "guerrilla information war," in the same year Ryan wrote for Radical Software, a journal of the Raindance foundation, the article Cybernetic guerrilla warfare.
In 1970, McLuhan described World War III as a "guerrilla information war."  Around the same time, Ryan wrote an article for Radical Software, a journal associated with the Raindance foundation, titled "Cybernetic Guerilla Warfare."