This article assesses whether the EU contributes to long-term positive change in societies emerging from violent conflict, helping them 'mend' or whether it simply encourages societies to 'make do' with the status quo. To do so, the article focuses on two of the principles found in the Treaty, peace and justice for human rights violations. It examines how the EU translates the principles of peace and justice into policy and puts them into practice by analyzing EU engagement in peace mediation, transitional justice, and security sector reform in general and through in-depth examination of EU engagement in the Democratic Republic of Congo. It questions the prevailing discourse that greater inter-institutional coherence would improve EU security provision and considers whether and how the EU prioritizes between peace and justice. The article finds that principles may be translated into policy and put into practice, and practice is often ahead of policy. But this is uneven within as well as across the institutions. Greater coherence between principle, policy, and practice, rather than between institutions, would improve EU security provision and enable prioritization. If the EU settles for making do, it undermines its considerable potential to contribute to long-term solutions to complex conflicts.