My overview analysis of this is that the Americans are overwhelmed by this geostragetic occurances and partially due to their policies for the last 30 years because they have been cannibalizing their allies over irrelevant matters example even NATO itself is splitted and at it's weakest point where Germany and France are not on the same page and all that is due to the cannibalism that was taking place but Biden Admin took it to a whole new level and it is coming back to haunt them as an axis that is powerful has appeared..
Example just listen to this report and they are surprised by the overwhelming support Russia is getting in China and it seems like they have been living under a rock if anything China may join this war if it spreads to Europe on Russia side making this report naive.
They have been cannibalizing their own NATO allies and MENA allies because they got to comfortable in the passing years that they became to over-confident and now everything is crashing down.
They were spying on Germany for years and keeping their military weak on purpose, undermining the French and trying to contain Turkey and limit them including trying to create irrelevant quagmires for MENA allies.. Also annoying everyone with irrelevant NGO human right activists..
While completely being oblivious to the fact that their empire is coming to an end nor knowing where the chellenge is coming from.
Right now if WW3 breaks out Europe will fall to Russia-China because everyone else will assume neutrality in the old world because they don't trust the US even Israel will assume neutrality and they can't logistically fight toe to toe with Russia and China in the old world due to logistical reasons because they don't have land-corridor to the Eurasian continent. They will be forced to watch Europe fall entirely to Russian-Chinese forces if they want to commit to an all out offensive campaign.
All of West Europe will fall easier then Ukraine after an intense nuclear campaign because they won't attack NATO unless it is via Nuclear warfare..
The threat the US is facing is alot more credible then most assume. Biden Admin is definitely not coming back to power because it has cannibalized allies and the US will focus on re-gaining allies but unsure whether they will succeed as the other side will also be doing charm offense to prevent and on the other hand NATO itself could split as France may leave the alliance.
West Europe alone can't take on an axis of China-Russia