None of us know exactly what different leaders are planning so you may well be right.
I do wonder though: if that is the USs plan, why not say so? The US has formal alliances with NATO, Japan etc. They're public, because making them public dissuades the chance of an attack. If you're going to risk getting into a war, why not minimise the risk at no cost by being upfront about it? Instead the US maintains a position of "strategic ambiguity".
It would also be hard because China isn't Iraq. It's a nuclear nation with a bigger stronger army and much better morale. And Taiwan is an Island. You can't mass your troops 100m from the border and then march over when ready. The allies would need to do an amphibious landing less than 200 miles from the Chinese coast (aka air force), under fire from subs and against a fortified target.
Strategic ambiguity makes sense because they don't want to encourage Taiwan to declare independence by saying they'll 100% back them to the end. Blank cheques are great ways to start wars.
I do wonder though: if that is the USs plan, why not say so? The US has formal alliances with NATO, Japan etc. They're public, because making them public dissuades the chance of an attack. If you're going to risk getting into a war, why not minimise the risk at no cost by being upfront about it? Instead the US maintains a position of "strategic ambiguity".
It would also be hard because China isn't Iraq. It's a nuclear nation with a bigger stronger army and much better morale. And Taiwan is an Island. You can't mass your troops 100m from the border and then march over when ready. The allies would need to do an amphibious landing less than 200 miles from the Chinese coast (aka air force), under fire from subs and against a fortified target.