Fragility continues to present major challenges to achieving sustainable development goals (SDGs). International aid, particularly the Official Development Assistance (ODA), is a critical source of finance to deliver humanitarian assistance, development projects, and peace operations in fragile contexts. This study analyses if and how donors are motivated by fragility in their aid allocation across the humanitarian-development-peace nexus. Employing the random-effect Tobit method, the role of fragility as a donors' motive is analysed alongside three conventional categories of motives: self-interest, recipients' needs, and merit. The empirical analysis demonstrates an association between aid allocation across the nexus and fragility, but also a great degree of heterogeneity depending on the donor and the pillar of the nexus. It also detects a significant difference between how the state of fragility correlates with aid allocation and how the degree of fragility does so. [ABSTRACT FROM AUTHOR]