Militaries have an important and inevitable role in global health and will interface with existing health systems on deployments. While the primary concern of militaries is not global health, there are clear, and increasingly frequent, circumstances when global health activities align with the interests of defence. Recognising this link between global health and security warrants thoughtful consideration and action where concerns affecting both intersect. In addition to providing medical support to military personnel on operations, advantageous effects can be achieved directly from military medical activities as part of Defence Engagement. While there are limitations and ethical boundaries to the role of militaries in global health, further training, research and conceptual development are warranted to optimise military medical activity at the intersection of security and global health to deliver advantageous effects. This paper forms part of a special issue of BMJ Military Health dedicated to Defence Engagement.
Keywords: education & training (see medical education & training); health policy; health services administration & management; international health services; organisation of health services; organisational development.
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