Leiden University, Delft University of Technology and Erasmus University Rotterdam work together in the strategic alliance Leiden-Delft-Erasmus Universities since 2012. Within this alliance we are in the perfect position to contribute in an interdisciplinary way to the urgent global challenges we nowadays face, not only locally, but more importantly: worldwide. To make a real difference, we closely collaborate with our partners in Africa, South- and Southeast-Asia and Latin-America on topics such as Health, Water, Energy, Housing, Climate, Migration, Heritage and more.