This unique gathering is an initiative of Brussels Capital Region, Eurocities, Metropolis and the OECD Champion Mayors for Inclusive Growth Initiative. The Brussels Urban Summit (BUS) will bring together three international city conferences: the 14th Metropolis World Congress, the Eurocities Annual Conference and the sixth OECD Champion Mayors Summit for Inclusive Growth Initiative. It will gather over 300 cities worldwide and more than 1000 politicians, experts and representatives of civil society to exchange ideas and set the priorities for sustainable, affordable, and liveable cities going forward.