This graphic and title were published by The New York Times in two articles separated by eight days.
Ukraine's Counteroffensive Has Made Progress. But It Has Much Farther to Go (2023-09-20)
How the Front Line Has Barely Moved in Ukraine this Year (2023-09-28)
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This javascript bs sure makes for shitty snapshots, but I refuse to link directly to the NYT. 
While that certainly seems like what eternal Washington wants out of Ukraine, I'd rather bet on one side collapsing or retracting first.
The human burden on Ukraine has been incredible, and the economic damage on pretty much all of Europe is grave after just 18 months of conflict. Doubt this drags on for many more years.
Do you know if Putin has been able to consolidate power in the state because of the war? One of the big problems with post-Soviet Russia has been the rampant corruption due to oligarchic control and, frankly, it would be far more efficient if the state had more power.