This contribution considers the implications for industrial relations of European economic integration, and possible trade union responses. We can understand industrial relations as institutions and processes of social regulation of work and employment, whether by law, collective bargaining or more diffuse norms and standards (often, a combination of all;three), These systems of worker protection became consolidated at national level: their foundations are eroded by increasing economic internationalisation (to which the European single market was a response, but which it further reinforced). Through the dynamic of "regime competition", multinational capital can play off national governments and national trade unions against one another, while norms of worker protection are subverted by growing insistence on "shareholder value". Effective regulation of work and employment must be reconstructed transnationally; but most trade union energy has been devoted to a vain pursuit of European analogues of national legislation and collective agreements within a bureaucratic elite process of "social dialogue". What is needed is, first, effective articulation between European-level trade union action and the day-to-day realities of national and workplace trade unionism, and second, a struggle to create a European civil society within which the protection of workers' rights can win popular support and which can sustain effective collective mobilisation.