Such a brave coward."
Now you're just being silly.
Nobody has asked for American troops to fight for Ukraine.
Ukrainians themselves have asked for American material and financial aid to help them fight off Vlad the Ivader's forces.
In recent weeks Vlad's forces have mounted massive offensives around especially Avdiivka, resulting in about 1,000 Russian troops killed per day, according to Ukrainian estimates.
We are not told Ukrainian forces casualties, but since they fight from dug in defenses, with long range artillery and drone strikes, we'd expect Ukrainians to lose vastly less than exposed Russians in "Meat Wave" assaults.