**Europe is already stepping up: more weapons from France, Germany, Sweden and Norway. Several billion dollars worth. And a billion dollars buys a lot more in Swedish weaponry than American.**
And the troops? They may be running out. Any mercenaries available?
Unless they are attacking, the Ukrainians need much fewer troops. And they don't do Bakhmut-style hold at all costs but defense in depth.
There are quite a few Columbians. The best foreign fighters according to the Ukrainians are the Finns.