For starters ,was has returned to Europe. Fundamental principles of pan- European security are part of the wreckage , and so may be the progress in relations between Russia and the west made since the cold war's end . moreover , the Arab world , more violent and unstable than it has been in many decades, seems likely to fragments even further, while radical jihadist groups , energised and competing with one another, are increasingly directing their rage at the west again. And in the Asia -Pacific region , even though major incidents were avoided, stability remains precarious.