Dorn, Florian; Potrafke, Niklas; Schlepper, Marcel - 2023
War is raging close to NATO's Eastern border. Russia has attacked Ukraine and threatens those states that in the past … had been part of Moscow's sphere of influence. Many of them are now member states of NATO. As a collective defense … alliance, this poses a threat to all NATO members. Since the ability to defend against an aggressor does not come for free …