Thomas Nagel thinks that global justice is not a moral issue. It is strictly political, he argues. Justice for him is anchored in associative relations that do not impose moral obligations on citizens with respect to how they are to relate to outsiders. This paper counters that argument. By citing historical injustices and by looking into the reality of unjust global structures today, it will be argued that the problem of global justice necessitates that people should take a moral stand.