At the 1‑year mark of Russia’s invasion of Ukraine, expectations about the final outcome run the gamut from the belief that a definitive Ukrainian victory is imminent to warnings that Russia will ultimately prevail.
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The United States and NATO are doubling down on their strategy of military assistance to Kyiv, believing that Ukraine can win the war. The recent decision to send Abrams tanks and longer-range missiles highlights the dramatic escalation. 
Both the level of optimism and the extent of NATO’s aid has noticeably increased since the surprising success of Ukraine’s autumn military offensives in both northeastern and southern Ukraine that regained control of significant swaths of territory from Russian occupation forces. Former general and CIA Director David Petraeus epitomizes that attitude, saying that Russia can’t win and that there is “nothing (Putin) can do” to stop Ukraine from winning. 
However, even some voices within the U.S. foreign policy establishment have expressed greater caution about Kyiv’s chances for victory i …