The growing trend toward the securitization of infectious disease has legitimated a role for national militaries in responding to public health crises. This apparent "militarization" of health has met with resistance from the health and security sectors alike, who argue that it risks politicizing health outcomes while also draining limited military resources. This article attempts to place such concerns within the broader historical context of military involvement in public health. With specific reference to pandemic influenza—a disease of great historical import and a current policy priority in the context of securitized global public health—this article details the pedigree of military involvement in fighting the disease and draws on the established record to demonstrate the role that militaries can play in improving public health outcomes. The article argues for an ongoing military role in the global fight against pandemic influenza, both in augmenting civil influenza programs and in improving their own preparation and response mechanisms for future pandemics.