For several years, the European Union (EU) has been increasing its international presence and moving into the role of a global security actor. To support the goal of greater crisis management capabilities, European security integration (ESI) has been deepening. This article therefore examines an Ell operation - the European Union Training Mission in Mali (EUTM Mali) - with the aim of gauging the success of the EU's efforts at ESI. To determine the success of EUTM Mali and thus of ESI, three propositions are examined: if EUTM Mali is a security operation showing successful security integration, there will be evidence of (i) broad participation, (ii) financial burden-sharing and (iii) the successful incorporation of troops and equipment. The first and third propositions are supported whereas the second does not receive as much support. Overall, EUTM Mali shows considerable success and bodes well for further ESI.