The European Union has called on member states to step up European defence coordination after recognizing the urgency of better security and defence cooperation to counteract changes in the global political arena. Until now, defence cooperation in Europe existed primarily on a bilateral or regional level. However, increasing threats of terrorism, a resurgent Russia and the uncertainty caused by Donald Trump and Brexit have forced EU leaders to reopen discussions on the subject. According to a study by the European Parliament, there were nearly 400 on-going military cooperation projects in Europe in early 2015. An example of the existing partnerships is a joint procurement program for ammunition for an anti-tank system used by Estonia, Latvia, Lithuania, the Czech Republic and Poland. But as Cold War-era tensions resurfaced, since Russia annexed Crimea in 2014 and pro-Russian rebels carving out a region in eastern Ukraine, the EU must do more to secure its citizens in an increasingly unpredictable international climate. [...]