In order to clarify whether Rawls is more or less cosmopolitan than Kant, we carry out a comparative analysis between his general proposals for the organization of international relations. Likewise, seeking to clarify the distance between cosmopolitanism, pacifism and ius internationalism, the ius ad bellum proposals of both authors are particularly analyzed in the war-and-peace debate context. On the one hand, as a result of the first analysis, different commonly unnoticed logical coincidences between the postulates of Kant and Rawls are (...) highlighted. On the other hand, after the conclusions of the second analysis and taking as a criterion the causes that both authors admit as just for war, a proposal of an ideal type of cosmopolitan ius ad bellum is also provided. (shrink)