What places could have become part of the United States?

Greenland, Cuba, the Philippines, North Mexico, British Columbia (Like, half of it anyway), Puerto Rico, Albania, Canada, Panama, the trust territories, and the Golden Circle (Everything that the Caribbean sea touches).

Not all at the same time and they all have varying degrees of plausibility, but that's the best I can come up with off the top of my head.

Um.. We DO have Puerto Rico...
 
I want to know more about Zachary Taylor wanting immediate statehood for New Mexico and this offer by El Salvador. They both sound really interesting.

About the OP, more of underpopulated northern Mexico seems doable.
 

It's

Banned
Well IMHO the fact that the US never went full on empire building IOTL's 1890s speaks quite a bit for how little love there was for the idea of pure territorial expansion outside the continental boundaries.

America had plenty of territorial expansion to do within its existing sovereign boundaries in the 1890s, so I don't think it was a matter of "little love", but of pursuing the optimum national interest, like every other country.

If the Germans had been goose-stepping up Whitehall in early 1941, then I can see America annexing/occupying British pacific island territories beyond Australia's resource reach (against the Japanese).
 
Greenland, Cuba, the Philippines, North Mexico, British Columbia (Like, half of it anyway), Peutro Rico, Albania, the rest of Canada, Panama, Sicily, Okinawa, the Trust Territories, and the Golden Circle (Everything that the Caribbean sea touches).

Not all at the same time and they all have varying degrees of plausibility, but that's the best I can come up with off the top of my head.

Albania? Huh?
 
With a Mexico dominated after American-Mexican War (1846-51, longer than OTL), a president expansionist convince the generals to expansionism and incorporates the country after Mexico City's capitulation.

Denmark fall to communism after WW2, then Greenland was annexed by US.

Philippines and Cuba never rebels against US government.
 
1759, British General Wolfe defeated French soldiers on the Plains of Abraham, just outside the walls of Quebec City.
Most of those British soldiers arrived in American ships sailing out of New England ports, so the invasion of Quebec was launched from the 13 Colonies.
Most of their rations and supplies were purchased from New England merchants.
The Battle was not decided until the spring of 1760, when a British convoy was the first to sail up the Saint Lawrence River after the ice broke up.
By then the French had decided that Indian Ocean colonies were far more profitable.

Even after the American Revolutionary War, traditional trade routes still followed the Atlantic seaboard, up past Massachewsetts, New Hampshire and Maine. United Empire Loyalists expected a warm welcome (in Nova Scotia, New Brunswick and PEI) but were disappointed by the poor soil and poor business prospects.

As late as 1800, the British Crown discouraged UEL from settling in southern Quebec's Eastern Townships for fear that immigrants would continue trading with those heathen revolutionaries in New England. One of my (late loyalist) great grandfathers emigrated from New England to Huntingville, Quebec in 1805. Another UEL grandfather emigrated to Lacoll (sp?), Quebec.
When an old friend renovated an old house, he found Boston newspapers dating from 1848 insulating the walls.

Bottom line, Britain was right to fear than American immigrants were too eager to maintain trade ties with their old neighbors in New England. Few late loyalists cared which distant government pretended to rule them.
 
Palestine?

I saw a map once--can't remember where, but it was an atlas of World War I--that had the British hoping to foist Palestine off on the USA as a mandate. This map was, IIRC, done before the US entered the war.
 

Orsino

Banned
It seems like we're ignoring the realities of actually integrating some of these territories and the lack of any significant support for doing so on either side. Juse because a nation was or could have been temporarily occupied by the US, or the US had some hypothetical claim, it doesn't mean there was ever a realistic chance of that territory joining the union.
 
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