Europe's leaders have called for a new report into how to boost their joint defence and security role in the world.

At a summit in Brussels they gave EU foreign policy chief Cathy Ashton a brief to produce proposals to strengthen the bloc's long-standing defence and security co-operation to "improve the availability of the required military capabilities".

A summit declaration said that, in a changing world, the EU was being asked to take on increasing responsibilities in maintaining international peace and security. It said EU leaders were committed to improving the effectiveness of their Common Security and Defence Policy (CSDP) as a "tangible" contribution to international crisis management.

CSDP missions and operations have been carried out in the Western Balkans, the Horn of Africa, the Middle East, Afghanistan and the South Caucasus, always in close co-operation with organisations such as the United Nations and Nato.

Baroness Ashton, the EU's "High Representative" for foreign affairs, will look into the EU's rapid deployment ability for civilian and military personnel and equipment.

She has also been asked to study how to strengthen Europe's defence industry by improving competition.