—> It will be the second Putin decides to grab a part of a NATO member nation
Unless NATO enters the war under a false flag, no reason to worry.
—> Isn’t it better to just give or sell Ukraine the equipment to end Russia’s adventure?
No. Europe can and should handle their backyard issues.
And Europe is free to buy its energy from Russia instead of the US. Russia is free to use those resources to build nuclear weapons and send money to thier key ally Death to America Iran. Armchair isolationists can and should understand there is real price to be paid in American blood and treasure for their fantastical daydreams.