There is an old adage..."Fight fire with fire."
Before the days of small digital recorders I was asked to participate in a JC inquiry about an alleged wrongdoing. When I arrived, of course the lying accuser was nowhere to be seen, just the three judges and the accusation. So I politely informed them that the entire proceeding was going to be recorded by multiple "eye witnesses" to their JC meeting. They excused me and said they would get back to me at a later date. I did not tell them that it would be angels, Jesus, and God himself "recording" everything said. Is that "spiritual warfare"?