NATO's top military commander U.S. Air Force General Philip Breedlove, who took over as NATO's Supreme Allied Commander Europe in May, said........"Instability in north Africa is a concern for NATO which is keeping a close eye on events in Egypt and its neighbors......... many European NATO members bordering the Mediterranean were affected by what happened in North Africa................."Refugee flows, commerce, drugs, all kinds of things in Europe are affected by what goes on in northern Africa so any instability in northern Africa is clearly a concern of the NATO nations," .....he told a group of reporters at NATO's operational headquarters in Mons, Belgium.