Perhaps they should be training Americans in America instead of foreigners in far away lands....in light of what is heading our way.
They are. It's called "Boot Camp."
Regards,
Any official training of Americans would be for building up forces to suppress the people, in your coming time of troubles. Its way better for them to train Ukrainians.
The same reason your Army stockpiles are better in Poland and Ukraine than the US. Because otherwise when the time comes all that stuff is going to be aimed at you.