This thesis considers international assistance to transitions. In particular, it examines the relationship between the areas of transitional justice, peace-building, security sector reform and economic development in international law and in the policies of international organisations and donors. It argues that more coherent and effective international engagement is possible through the use of the principle of integrity by international actors. The thesis identifies that international actors pursue diverse goals across these areas, such as justice, truth, peace, reconciliation, an effective security sector, or economic growth. It contends that transitions generate distinct normative and factual circumstances: in pursuing their goals, each area seeks to achieve minimum conditions of civic trust and the rule of law to contribute to the re-constitution of a sovereign political community. These shared conditions render the areas inter-dependent. Nevertheless, the areas r...