A Convergence in Strategic Approach The 2020 Defence Strategic Update normalised ‘grey-zone activities’ in the lexicon, introducing them as a strategic driver shaping Australia’s strategic environment [1] and noting that Defence will expand its capability to respond to such threats. [2] This task will prove difficult without a clear understanding of what is meant by the term ‘grey zone’. To address that question, I will start with an unusual analytic perspective. Professor Theo Farrell argued that Western …