Protest campaigns against large-scale public works usually take place within a local context. However, since the 1990s new forms of protest have been emerging. This book analyses two cases from Italy that illustrate this development: the environmentalist protest campaigns against the TAV (the building of a new high-speed railway in Val de Susa, close to the border with France), and the construction of the Bridge on the Messina Straits (between Calabria and Sicily). Such mobilizations emerge from local conflicts but develop as part of a global justice movement, often resulting in the production of new identities. They are promoted through multiple networks of different social and political groups, that share common claims and adopt various forms of protest action. It is during the protest campaigns that a sense of community is created.