A durable exit from poverty and insecurity for the world’s most fragile states will need to be driven by their own leadership and people. International actors can affect outcomes in fragile states in both positive and negative ways. International engagement will not by itself put an end to state fragility, but the adoption of the following shared Principles can help maximise the positive impact of engagement and minimise unintentional harm. The Principles are intended to help international actors foster constructive engagement between national and international stakeholders in countries with problems of weak governance and conflict, and during episodes of temporary fragility in the stronger performing countries. They are designed to support existing dialogue and coordination processes, not to generate new ones. In particular, they aim to complement the partnership commitments set out in the Paris Declaration on Aid Effectiveness. As experience deepens, the Principles will be reviewed periodically and adjusted as necessary.