Joe Biden’s likely last European visit as president was billed as a final chance before the upcoming U.S. presidential election to meet with key world leaders, solidify long-term support for Ukraine, and work towards ending Russia’s full-scale invasion launched over two and a half years ago. “Ukraine faces a tough winter. We must sustain our resolve, our effort and our support,” Biden told reporters before the talks in Berlin on Oct. 18, as cited by the Washington Post. “I know the cost is heavy. Make no mistake, it pales in comparison to the cost of living in a world where aggression prevails…