Bringing together comparative case studies from Belfast, Beirut, Amsterdam and Berlin, this book examines the role of the urban environment in social polarisation processes. In doing so, it provides a timely and refreshingly innovative voice in the confusing babble on (counter-)terrorism, urban conflict and community cohesion. Despite their socio-political differences, these cities are telling cases of how the location and shape of very mundane objects such as rubbish bins, bridges, clothes' stores, shopping malls and cafés - in addition to the obvious fences, walls and barbed wire - are often subject to heated controversies and influence the way urban conflict is 'lived' and practised.