What would the good folks here suggest the US do in the Ukraine?
Be specific.
The EU should provide loans... and America sells offensive military equipment to the Ukrainian government.
Third-party allies (South Korea, for example) train the Ukrainian military to fight.
NATO keeps Russia guessing by moving land forces into Poland... and naval forces into the Baltic for long-term "training exercises". This forces Russia to spread their forces out, preventing them from massing in any one area (ie: Baltic states, Poland, or the Ukraine).
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Of course, Trump would destroy NATO so that we'd not even have them as an option.