Treaty of Lisbon (No. 5)

Many of us who have served in the armed forces, including myself, are concerned about the development of a European defence force and how that would work in conjunction with NATO. Can the Secretary of State give an example of when NATO might be used or when a future European defence force might be used? In all the conflicts and theatres in which I was involved, there was no unanimous agreement on action in Europe. I can see a situation in which there is a call for a European force that cannot be answered, partly because the forces are double-hatting in NATO, but also because unanimity will never be achieved.