NATO countries, including the U.S. fear getting involved in the Ukraine war, because, it would trigger a bigger war against Russia and perhaps involving nuclear weapons.
What will NATO and the U.S. and the world do when Russia becomes emboldened by a win in Ukraine and then decides to invade other European countries? Show more fear and allow Putin to have his way in another country?
FACT is that, the world, including NATO and the U.S. have to stop Putin now. Putin is not going to risk using nuclear weapons and have his entire country wiped out.
If he steps beyond Ukraine, I’m sure it’ll be global war.