there will be two helicopter crashes and when a tank gets hung up on something, in standard military fashion, someone in the parade, hopped up on diesel fumes will shout "gun gun gun!" and panic fire into the crowd gathering nearby. the event will be spun as antifa terror attack which was successfully repelled.
even though the real culprit will actually have been incompetence at every level.
video footage and audio recordings showing unequivocal evidence of this will be declassified during the truth and reconciliation council acts of 2053.