Yes, the EU Common Foreign and Security Policy is a move towards a common policy, because it allows EU member nations to consult and reach a consensus on the use of force. Many think that the EU is too weak, and this move to a nationalized system allows them to take joint, unified military action.
The Common Foreign and Security Policy (CFSP) is a step toward EU unity, and a step toward the European Union's supranational authority. The CFSP is a step toward common policy, as it will be used to define a united EU stance on issues and a united front in the face of conflict. The CFSP will make the EU a more effective organization by pursuing common policy.