What's more, no one in the Biden administration has given us its definition of victory yet. As in Afghanistan, the goal posts are unclear and keep moving. Various members have suggested that the U.S. must keep weapons flowing to Ukraine and sanctions tightening on Moscow until Russia is permanently "weakened" and its military capability degraded, "so Putin doesn't do it again."

Meanwhile, Ukrainian President Volodymyr Zelensky has said he will declare victory when his forces reclaim all of the country, one fifth of which is now controlled by Russia. But even with our aid, Ukraine's definition of victory is implausible given Russia's overwhelming military superiority.

https://www.newsweek.com/bidens-recklessness-turning-ukraine-another-afghanistan-opinion-1726140