The argument is that leaderships and activity that ‘bridge’ scalar relationships are an important condition in this process. There appears to be a complex set of cross-connections between the local, the national and the international. While transnational connectivity increasingly defines contemporary forms of trade unionism, these scalar relations are defined in relation to the workplace, the everyday world, and by the ways that transport is a defining characteristic of the global world. These relations constitute contemporary class struggle where work and employment relations are always in a process of change and development. Trade unionism, thus, remains a collective expression of power relations, in an increasingly internationalized world of work and employment.