The scale of attacks on healthcare has become more visible and its impact greater in recent armed conflicts in Ukraine, Sudan and Myanmar. In these conflicts, combatants systematically target health facilities and ambulances. We need to ensure that attacks on healthcare do not become the new norm amongst governmental troops and non-State armed groups. There is limited evidence about why and how attacks on healthcare have become “normal” practice amongst many combatants, despite the likely tactical and strategic costs to themselves. We are convinced that the problem now needs to be tackled like any other public health issue by assessing: the scale of the problem; who is the most at risk; identifying risk factors; developing new interventions to prevent the risks or address the issue; and evaluating the effectiveness of these interventions.