For the West, the principle of not redrawing borders by force is a vital political concern – indeed, it is a pillar of a civilized world order. But both the US and Europe have made it clear that Ukraine's sovereignty is not worth dying for, with the EU disinclined even to follow America's lead in imposing increasingly tough sanctions.
普京输不起这场在乌克兰争夺影响力之战。对西方而言，避免以武力重划边界是一项重要的政治原则——事实上也是文明世界秩序的支柱。但美欧均已明确表示不值得为乌克兰主权付出牺牲。欧盟甚至不愿跟随美国进一步加强对俄制裁的力度。