What if the Mexicans joined the Central Powers and started a second Mexican-American War? How ill that change things in Europe and the Americas as well (if the Zimmerman note was not a fake)?
Mexico is screwed. Basically.
America will be adding 3 or 4 new states around this time in TTL.
What if the Mexicans joined the Central Powers and started a second Mexican-American War? How ill that change things in Europe and the Americas as well (if the Zimmerman note was not a fake)?
The Zimmerman Telegram was not a fake - even Zimmerman owned up to it.
None of the things you said is remotely plausible, unfortunately
As much as an invasion of the US is a favorite of alternative history, they are mostly about as plausible as HG Well's war of the worlds, and is the result of the same sort of paranoia.
WI Austria-Hungary moves more troops on the Western Front? The Germans also have U Boats, which could distract the Royal Navy from troops going across the Atlantic. The Germans could have attempted to pull the Russians back in on the war, but only on Germany's side. They could also get assistance from China and possibly Japan before they could join the Allies to attack the US. They could start in the Philippines, and American forces could deploy troops there, not knowing that the Mexicans and Germans were planning an invasion. That would make it possible. Also, to pull Allied troops off the Western Front, the Germans can stir up rebellions in Allied colonies and then they could definitely afford an attack on the United States that would be possibly a CP victory. They could get the Ottomans to start offensives in Egypt, which would occupy the British and French, and there will not be any Allied forces up at the Ottomans, allowing them to be able to attack the British and French at Egypt and start a campaign in Africa. FYI I am not supporting the CP, I am supporting the Allies and their cause more than the CP. I am just putting down possibilities of what could happen to make an attack on the US
No, just.... noWI Austria-Hungary moves more troops on the Western Front? The Germans also have U Boats, which could distract the Royal Navy from troops going across the Atlantic. The Germans could have attempted to pull the Russians back in on the war, but only on Germany's side. They could also get assistance from China and possibly Japan before they could join the Allies to attack the US. They could start in the Philippines, and American forces could deploy troops there, not knowing that the Mexicans and Germans were planning an invasion. That would make it possible. Also, to pull Allied troops off the Western Front, the Germans can stir up rebellions in Allied colonies and then they could definitely afford an attack on the United States that would be possibly a CP victory. They could get the Ottomans to start offensives in Egypt, which would occupy the British and French, and there will not be any Allied forces up at the Ottomans, allowing them to be able to attack the British and French at Egypt and start a campaign in Africa. FYI I am not supporting the CP, I am supporting the Allies and their cause more than the CP. I am just putting down possibilities of what could happen to make an attack on the US
Depends on whether or not the Americans realize that the Zimmerman note existed in the first place.
For Mexico - the prognosis is poor. The patient is likely to experience sudden loss upper portions of the body due to aggressive response by foreign antibodies to attempted absorption.
Given the patient's traumatic state (internal disorder and strife as noted in low stability count), the patients long-term viability without ongoing external support from the now dominant upper sybiote us unlikely.
(sorry wife has become big House fan of late).
Mexico loses northern tier, doughboys that would've gone to France (and some supplies) head south instead.
Likely that the US would have a long term presence in at least portions of the remaining mexican state(s).
Assuming that this happened early in WW1, the US could easily be sufficiently distracted as to largely ignore the war (assuming, of course, that the rationale for the attack never comes out).
Given the balance of forces in the WH, I would have to guess that the CPs would deny all knowledge of any supposed alliance, and accuse their Ciudad de Mexico counterparts of delusions of grandeur.
Not entirely sure about the impact in Europe, perhaps the Germans do slightly better than in OTL (no doughboys, somewhat less supply to the Entente). Then again, any supplies/ammo etc provided to Mexico would have to come from supplies otherwise destined for fronts in Europe - so if the CP provided Mexico with enough aid for a non-lunatic to start the fight in the WH, they would be shooting themselves in the foot with regards to fighting closer to home (this of course presumes that the supplies are moved out before hostilities start and the RN starts shutting down CP ports).
Now, the really interesting question is whether Germany can KO France (and Italy, they'd be next) and bring the war in Europe to an end before the USA joins in the fighting.