To date, the only account of the 'zone of peace' among states in the core o
f the international system is that found in the democratic peace debates. W
e rework the conceptual parameters through which the object of analysis - t
he zone of peace - is defined in the democratic peace debates. Specifically
, we historicize the concepts - 'democracy' and 'war' - that enable the ide
ntification of zones of peace and war, and contextualize those histories in
processes of globalization. This enables us to offer an alternative accoun
t of the emergence of zones of peace and war in the international system an
d of the central unit of analysis in the democratic peace debates, the sove
reign and territorial liberal democratic state. This account conceives of t
he international system as a whole and recognizes the mutually constitutive
character of relations between the zones. It opens up a research agenda fo
cused not on why democratic states do not war with one another but on the i
nternational relations of democracy and war.