But the Nato Response Force will also act as an important catalyst for change.

BBC: NEWS | Europe | Nato's force for change

The new NATO Response Force and Allied Command-Transformation in Norfolk are examples of combined allied transformation efforts.

CENTERFORSECURITYPOLICY: Transforming the United States Global Defense Post

That puts an onus on training, military exercises, and making sure the NATO Response Force, which is meant to provide rapid-reaction forces for deployment at short notice, is up to the job.

WSJ: For Europe's Defense Establishment, a Moment of Truth on Defense

Troops of soldiers have held a parade to mark their 2013 role as NATO's response force.

BBC: ARRC parades in Gloucester to mark NATO role for 2013