In 2017, three hurricanes of exceptional violence hit the islands of Saint Martin and Saint Barthélemy, 250 kilometres north-west of Guadeloupe. The most devastating of them, Irma, caused considerable damage to both territories. The two northern islands suffered the same cataclysm, but each have known different methods and modalities of reconstruction, taking into account their institutional and developmental characteristics. Although the reconstruction is now almost completed in Saint-Barthélemy, Saint-Martin still faces important challenges, without even mentioning the specificity of the island, divided between France and the Netherlands.