Eurofed
Banned
Thinking about it, I am convinced that America can't take most of the British Empire in a single war.
There can always easily be another major war triggered by Entente revanchism.
Unless it's a fiat acompili, the European allies of the US will be reluctant to give the US more than Newfoundland and British South America. Those areas fall under the natural preview of the USA, but Germany and Italy are going to want to take pieces out of British Africa, and both of those nations along with Russia are going to be extremely reluctant to let America have even more territory and power projection ability than it already has.
A very valid point, but I do not see Germany, Italy, and Russia making major objections to the US annexation of Australia and New Zealand, either. Oceania is quite far from their geopolitical turf and close to the US one, and ditto as power projection goes. Brazil and South Africa can always be the affair of the Second Great War, esp. the latter. Fully agreed that Germany and Italy are going to make a feast of Anglo-French Africa.
Basically, I don't see America taking most of the British Empire in a single war unless it takes and occupies all of those places itself, and I don't think think it has that kind of power projection until it has at least he Philippines.
About the Philippines, a valid point to make the SAW earlier and separate from WWI, we shall see. As I said, the only issue about the SAW ITTL is to keep it from becoming WWI by keeping at least UK out of it. Quite doable, but it requires some butterfly management. Maybe a Franco-Spanish-American War, albeit it needs to be one that does not demoralizes France and Spain too much to fight a WWI later.
Well, unless it can invade Great Britain directly, but unless they own Ireland or something that's highly unlikely.
An intervention in Ireland is wholly WWII stuff, if ever, agreed.