When this occurs, the human beings involved in these decisions will have no idea that they are being influenced by spirit beings. Satan and his demons are invisible and accomplish their work by broadcasting attitudes and putting thoughts in people's minds. These thoughts and attitudes seem normal and natural to the people involved, yet their result is utterly inhuman and unnatural, such as the Holocaust, the Inquisition, "the killing fields," "ethnic cleansing," "total war," and the like. What has occurred throughout all of human history will happen again.
It has been said that human history is little more than a chronicle of man's wars. These wars are the result of men being influenced by invisible, evil spirit beings ever since Adam and Eve sinned and were cast out from the presence of God (Genesis 3:22-24). No people and no generation have ever been immune from Satan's attempts to keep men separated from God.
Earl L. Henn (1934-1997)
The Great Conspiracy
The Devil will again go on the offensive against God with the same results: He is cast back down to earth. In his anger over his defeat, he will savagely persecute God's people and gather the armies of man to fight against Christ when He comes. He and his human agents will be soundly defeated, and Satan will be bound in the bottomless pit for a thousand years.
Richard T. Ritenbaugh
Basic Doctrines: Satan's Origin and Destiny