The EU and UK will need to stump up $400 billion over four years or risk undermining the cohesion of NATO, The Economist has reported Ukraine will require close to $400 billion in Western financial support over the next four years to sustain its war effort against Russia, with most of the burden expected to fall on European NATO nations, The Economist reported on Thursday. According to the magazine’s projections, Kiev faces a budget shortfall of roughly $50 billion a year that foreign sponsors