I feel obligated to point out that a major reversal in Washington's fortunes came when Lafeyette (and a few other European officers such as Steuben) trained American colonists, and they became dramatically more effective. Who knows, maybe there are equivalents of Lafeyette and Steuben among the Ukrainian people today, but if so I wouldn't know about it (or expect to).
Ukraina has been living with the threat of war for a while now. They have had help training from both neighbour and not so neighbour countries since 2015 at least.
