After striking for the first time in its history in 1985, the Australian Nursing and Midwifery Federation (Victorian Branch) (ANMF) has experienced consistent and continuous growth in union membership since 1990, a period in which most unions have suffered a decline in membership. Drawing on an analysis of the trade union ‘organising’ model and social movement theories of organisation, mobilisation, leadership and the framing of grievances, this thesis will chart the history of the Branch over this period. It will address three questions. First, how was the union able to grow and flourish in a period characterised by union membership decline? Second, what strategies did the leaders of the Branch employ to ensure this growth and success? Third, how were these strategies developed and how were they applied in industrial campaigns?