Discussion: Manifest Destiny in the 1830s

So, I'm trying to figure out this timeline of mine, and I'm looking at the United States of the 19th century and wondering about a few things.

Namely:

1. Is it possible to keep the United States from getting a Pacific coastline from the 1830s onward?

2. If so, how difficult would it be and what would have to happen?

3. If not, why and what would be the latest point in time to avoid it?

4. What would be the effects of the United States only having one coastline?
 
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USA does not claim Oregon Country or does not retain its claim to the Oregon country

The claim to Oregon was made through the Lewis a

nd Clarke expedition and through other exploration and settlement by pioneers through the Oregon Trail.

No USA access to the Pacific in the 1830's could come about through the Treaty of Ghent if the outcome of the War of 1812 was more favorable to the British. The British then back this up by either kicking out American settlers moving west or making them British subjects.

Please not that the USA did not acquire Texas and then the Mexican Cession until the 1840's. If the USA annexed Texas in 1836 after its independence and then California and New Mexico shortly after the War with Mexico that would follow, the USA would officially have sole access to the Pacific in the 1830's.

If the USA acquires Texas and the Mexican Cession in the 1830's, would be interesting if the Missouri Compromise line is just forwarded to the Pacific, if the area is banned from slavery entirely. Would be interesting to see the fights in the country and if the Civil War occurs sooner.

Also, by having Texas, New Mexico, and California in the 1830's, the USA may stress more the need for all of the Oregon country in the 1840's.
 
hm. interesting.

also, oh shit I said by the 1830s.

I meant to say from the 1830s onward. Let me correct that. :eek::eek::eek::eek::eek:
 
Have a stronger Mexico, so that either (a) they win the US-Mexican War (not sure how difficult that would be to bring about), (b) they lose, but not as badly, ceding Texas but keeping California, or (c) the US decides not to risk going to war at all, so the US-Mexican War never happens.
 
Have a stronger Mexico, so that either (a) they win the US-Mexican War (not sure how difficult that would be to bring about), (b) they lose, but not as badly, ceding Texas but keeping California, or (c) the US decides not to risk going to war at all, so the US-Mexican War never happens.

So how do I make a stronger Mexico? (my PoD is the early 1820s and in the Philippines, so I'm not exactly sure how I'd go about with this.)
 
I don't really see even a stronger Mexico having the state capability to settle California and defend it against the United States for a long time period. Even if the Mexican war is more of a stalemate, where they lose just Texas, I just think we'll get a second round a decade later.

What you could potentially do if have the British keep the Oregon country and then have California as a joint protectorate between them and Mexico.
 
I don't really see even a stronger Mexico having the state capability to settle California and defend it against the United States for a long time period. Even if the Mexican war is more of a stalemate, where they lose just Texas, I just think we'll get a second round a decade later.

What you could potentially do if have the British keep the Oregon country and then have California as a joint protectorate between them and Mexico.

So if I can just make Mexico look strong enough for Britain to back them, I can seal off the Pacific? If so, how do I do that? And if not, from where can I put Mexico in such a position?
 
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