With its profound implications, Brexit is set to be the defining issue for the United Kingdom (UK) and one of the most unique challenges that the European Union (EU) and its member states have ever faced. It was under the premiership of the former Prime Minister David Cameron that Britain's relationship with the EU took such a dramatic turn. As it is essential, now more than ever, to understand the intriguing issue of Cameron's European legacy, this article aims to deepen our understanding of his EU policy and provide key insights into the logic of his European dilemmas. As such, it explores how Cameron's EU policy evolved under his Conservative Party leadership and investigates patterns of continuity and discontinuity in his EU discourse. More specifically, the inquiry compares three stages of Cameron's EU policy corresponding with his three cabinets 1) shadow cabinet (2005-2010); 2) first cabinet (Cameron-Clegg coalition; 2010-2015); and 3) second cabinet (single-party ministry; 2015-2016). In each of these stages, attention is primarily given to trends, hallmarks and strategies of his European policy. The article concludes that whilst continuity can be detected in David Cameron's EU policies throughout the whole tenure of his Conservative Party leadership, his EU strategies and tactics were marked by substantial discontinuity. [ABSTRACT FROM AUTHOR]