Biden should not do this. The United States does not need to have its military resources drawn into yet another theater of the world.
I mean the Cold War kinda showed letting Russia take Eastern Europe could prove to be an existential threat to the US and while the current Russian Government isnt as evil as the USSR one was, they are still very bad.
I certainly think we need to stand firm against Russia, but I think we should do so by providing aid to Ukraine and to our allies, and by intensifying sanctions against the Russians. We need to avoid making military deployments that could escalate the situation.
We arent sending troop so Ukraine though from what I am seeing, just to other NATO nations.
As long as we don't send troops to Ukraine, that's acceptable. I'm still wary of American military deployments, however, after what has happened over the past two decades.