evidence: In this photo provided by the Ukrainian Presidential Press Office, U.S. Secretary of State Antony Blinken attends a meeting with Ukraine’s President Volodymyr Zelenskyy in Kyiv, Ukraine, Tuesday, May 14, 2024. Blinken arrived in Kyiv on Tuesday in an unannounced diplomatic mission to reassure Ukraine that it has American support as it struggles to defend against increasingly intense Russian attacks. (Ukrainian Presidential Press Office via AP) [...] The performance, and a series of sunny comments from Blinken about Ukraine’s battlefield prospects, was a startling juxtaposition to what analysts have called one of the most dangerous moments for Ukraine since Russia’s full-scale invasion in February 2022. Russian forces have taken swaths of territory along Ukraine’s northeast border, and thousands of civilians in the Kharkiv region have fled the increasingly intense attacks. [...] Blinken and other U.S. officials said despite some recent setbacks, Ukraine could still claim significant victories. Those include reclaiming some 50% of the territory Russian forces took in the early months of the war, boosting its economic standing and improving transportation and trade links, not least through military successes in the Black Sea.