US signed memorandum of security for Ukraine. Not involving into Ukraine war means:
1. Nuke is the only option to guarantee security. Everyone should get one. Iran, Venezuela etc.
2. If you have nukes you can occupy neighbors with little/no punishment. Taiwan is the next in line.
3. US is not an ally, could not be trusted in any way.
Sad to see how Trump is dismantling USA from it's role as a global superpower.