NATO member Poland said Thursday that the post-Cold War period of peace is "now over," as the European Union grapples with various crises including the Ukraine conflict and terrorism. "After tens of years of peace, that peaceful period after the Cold War is now over," Defense Minister Tomasz Siemoniak told reporters in Zagan. "Because there are more and more crises erupting around Europe ... It's not only the Ukrainian and Russian crisis but also ISIS and a number of different crises in northern Africa," he said.