Trust has always been a central concept in military command and control: it can be based on a ‘Band of Brothers’ construct or something a bit more complex with allies and partners. Yet this human-to-human rubric is not the same when we consider the concept of trust as it applies to human-machine trust. Or is it? Peter talks to Christina Balis, who wrote a paper in June 2022 about human-machine trust, about how we should be thinking about this – something that has been missing from the discussions as more C2 systems are added into military forces. What emerges is a demand for less coders (or software savvy commanders), and more about diverse education sets and inquisitive minds. Especially if the philosophies of delegated and mission-command are to remain more than rhetoric.