Satan, he seeks to instill in you the fear of his dupes. Fear them not! Rather fear Me (God), if indeed you are believers. (3:175)
In this verse, God makes it clear that one of the guiles of Satan is to instill into humans the fear of the damage and destruction that can be inflicted by his dupes. In the terror war all of those who allow themselves to be used to murder, usurp, and wreak havoc through tumult, turmoil, and oppression all in opposition to what God demands of us are Satans dupes, regardless of their actual religion or lack thereof.
