Michel Foucault refers to biopolitics as “the processes by which human life, at the level of the population, emerged as a distinct political problem in Western societies”. Yet for Foucault, ‘biopower’ – power over human life at the population level – remains a force strictly wielded via individuals. This neglects the global biopower wielded by biology itself. Given the sheer influence of disease on global politics, we must move to considering ‘international biorelations’: a study that recognises diseases as significant non-state ‘actors’ shaping geopolitical landscapes and giving rise to critical, yet often neglected, transstate dynamics. Doing so would help us capture the co-constitution of global health forces and international structures, reveal the limitations of state-centric IR scholarship, and better understand …