Indonesia's normative leadership at the 1955 Asian-African Conference was grounded in anti-colonialism that became part of the Bandung spirit . However, the shape of Indonesia's recent leadership, following its remarkable democratisation, is harder to fathom. In response, this article suggests that Indonesia's regional and international engagements can be usefully understood through the lens of shifting domestic efforts to navigate unity with diversity, including as this is reflected in long-standing foreign policy commitments. Empirical reference points include the management of conflict in the Indonesian democratic transition, the place of civilian militias in Indonesian political life, and the Bali Democracy Forum. The case is made that Indonesia exhibits a remarkable embrace of diversity alongside substantial illiberality a pattern that generates a flexible form of liberalism which presents difficulties, but also suggests particular opportunities for Indonesian leadership. Considering Indonesian navigation of unity with diversity enables a better understanding of the current and potential future shape of Indonesian leadership than analyses that rely on macro-level expectations of democratisation drawn from dominant liberal understandings of democracy and political order. This is in part because of the continuing salience of commitments to diversity, independence and cooperation that were articulated at Bandung in 1955. © 2016 Australian Institute of International Affairs.