An “erratic assault/dynamic defence” is where one or both sides deliberately act without any plan as a means to create a chaotic situation during the battle, thereby overwhelming opponents.
Examples of erratic tactics used in terrorism are where attacks are opportunistic and targets selected have only a generic relationships with the supposed political aims of the terrorists involved.
The purpose of random selection and immediate attack is to avoid encountering any form of prepared defence.
[4] Fundamentally, an 'attack zone' is conceived of as a surface or space and is constituted of the ways in which an adversary can attack a system and potentially cause damage.
In particular, this unpredictability makes interdiction difficult for a defender to implement, for attackers have an innate advantage by deploying in a target rich environment and behaving erratically to achieve surprise and defeat detection using a series of rhizome manoeuvres.