The ambition of the "Excellence Network of Universities on Island Territories" or RETI is to encourage and organize meetings between island academics, develop joint projects, and widely promote their work and reflections. RETI aims to position itself as a reference in terms of knowledge sharing, technology, infrastructure, and innovation capacity for island territories.

Beyond an island consciousness, the ambition and strength of RETI is to converge autonomous energies towards the creation of a collective asset, initiated by multilateral cooperation to achieve shared objectives in scientific and educational fields beneficial to all partners. The goal is to develop shared training or research actions around insularity, using the issue of nissology ("island studies") as a central element of reflection