What in reality is being sought is not a single foreign policy, which is the product of a single member state, but a common policy to magnify collective influence. With the Single European Act of 1987, political cooperation was brought into the system of EC treaties but it was the Treaty on European Union, often called the "Maastricht Treaty", of 1993 which brought CFSP into being and spelled out the five fundamental objectives for CFSP

Так single здесь или common? А может вообще uniform?

Спасибо заранее