Lille, Strasbourg and Basel are powerful cities situated close to national borders. Fuelled by economic, political and symbolic functions, their influence creates regions that are both metropolitan and cross-border. Thanks to interviews, cartographic work and textual analyses, this thesis looks at how cross-border metropolitan regions are constructed. This emerges as a process whereby the local actors have to mobilise together and with the European Union to negotiate with the States. This European scale recomposition generates areas subject to tensions where the cross-border conurbation is also part of other, larger regions.
