All I know is that we are free nations and bullies must be fought occasionally. All Putin understands is strong responses.
Russia has something in its psyche about expanding. They invaded Finland in the early 1900's and lost 200,00 of there own people and were driven back. The Finns know from their own experiences and have always kept their own strong army. The power of NATO is the modern weaponry.
The USA will be getting that money back many times over in the form of lend/lease and reparations and sales of technology.
War is always profitable for the USA & its partners especially the UK, France.
There will be no nuclear armageddon from Putin the USA/NATO is way stronger.