Europe's hopes for a continent of unity, democracy and peace have been undermined by Vladimir Putin's undeclared war in Ukraine. The Russian President's annexation of Crimea fostered fears across the continent of a wider war.<br /> Katarzyna Pisarska says self-doubt within the European Union prepared the ground for the conflict in Ukraine. She's been a member of the network of Young Global Leaders since 2014.<br /><br />For more information and videos go to:<br />http://www.dw.com/en/program/global-3000/s-11487-9798
