 Walzer argued that states’ claims to sovereignty and territorial integrity are grounded in the human rights of their citizens, in three ways. First, states ensure individual security. Rights to life and liberty have value “only if they also have dimension” (Walzer 2006: 58), which they derive from states’ borders—“within that world, men and women… are safe from attack; once the lines are crossed, safety is gone” (Walzer 2006: 57). Second, states protect a common life, made by their citizens over centuries of interaction. If the common life of a political community is valued by its citizens, then it is worth fighting for. Third, they have also formed a political association, an organic social contract, whereby individuals have, over time and in informal ways, conceded aspects of their liberty to the community, to secure greater freedom for all.