Last year, the Ukrainians defeated Russia’s invading army on the battlefield, denying Russian President Vladimir Putin all of his core objectives for the war. He failed to de-militarize Ukraine, install a puppet government in Kyiv, bring Ukraine back into Russia’s fold, and stop NATO expansion. Now, some of these successes could be reversed because of waning U.S. support. The false claim of a battlefield stalemate has brought about a new narrative that Americans should stop helping Ukraine because it cannot win. Alarmingly, the U.S. House of Representatives has delayed voting on the Biden administration’s request for supplemental military aid.

There are substantive arguments for and against such an approach.