Nato without the USA is nothing. All European countries should remember WWI and WWII. What would they be like today without the USA? They may all be speaking German. Maybe after almost 20 years since the end of USSR, the Europeans think they don't need such an alliance. They would be sorry if they ever lost it. The Russians want their empire back. I don't blame them. No one can prevent them from doing so if they wanted it bad enough. Maybe the USA can't stop it, but the Russians have to think twice before going forward. Without the support of the USA, Ukraine's brief national independence will be ended. I don't ever want the USA to have a conflict with the Russians either, but that is not something that one country decides alone. All countries have to know it is not worth it to have a war.