PoliticsYoung Global Leaders: Katarzyna PisarskaTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoPoliticsMichael Wetzel, Wolf Gebhardt 12/21/2015December 21, 2015Europe's hopes for a continent of unity, democracy and peace have been undermined by Vladimir Putin's undeclared war in Ukraine. Katarzyna Pisarska says self-doubt within the European Union prepared the ground for the conflict in Ukraine.https://p.dw.com/p/1HRQYAdvertisement