Medieval America Mark III

I remember Brazil being a maritime empire similar to the United States actually. Plus as per Matthew White's own theories on feudal forest regions, it's seems like he would have made Brazil a divided region like India or eastern America.
Though it was at times divided into multiple kingdoms, there was also plenty of empires as well, more or less uniting the region. That said, once the Amazon takes over again, it might become like the regions in South East Asia that had collapsed kingdoms that where over ran by the jungle, giving way to a more tribal society again.
Though it was at times divided into multiple kingdoms, there was also plenty of empires as well, more or less uniting the region. That said, once the Amazon takes over again, it might become like the regions in South East Asia that had collapsed kingdoms that where over ran by the jungle, giving way to a more tribal society again.
What about the Catholic Church in the region
I kinda want to make a spinoff based on but set in this TL. Here it is, let me know if this is good enough.

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Operation Continuity

Operation Continuity is a classified operation by the secretive Bureau of American Survival (later the Department of Preservation) in conjunction with the National Survival Council, the remnant successor of the remainder of the National Command Authority. The operation is intended to preserve whatever remains of American society and civilization after the world started to regress back to the old ages and descended into chaos.

The operation started sometime in the early 2000s as a failsafe operation by President Bush as a result of 9/11. America came under attack left and right, and so it's existence was threatened. The operation was initially managed by the Department of Defense. In the late 2010s, the effects of the regression began to be felt. The President of the United States, after consulting of what remained of the scientific community, created the executive Bureau of American Survival and tasked the new executive bureau of organizing and planning Operation Continuity. The first bureau director. Neil deGrasse Tyson with his staff set upon on planning the survival of the United States, or whatever was left of it anyways. Tyson planned for three stages for this Operation. The first stage involved the gathering of essential people and assets and was tasked with recruiting the top 10 percent of the remaining scientific community. The second stage was the long stage and the most important stage of the operation. It primarily focused on constructing the bunkers and storage locations intended for Operation Continuity. After that, these essential people(s) were to be frozen and put in cryosleep preservation chambers called Cryogenic Life Support Chambers for 900 years or were manually activated. The third stage was when Operation Continuity was activated and set upon the task of rebuilding American civilization.

Operation Continuity was spread throughout the continental United States (CONUS) by a series of deep subterranean bunkers. There were 8 bunkers overall. 7 of these bunkers were supporting bunkers, meant to be outposts. The main bunker codenamed ''Columbia'' was located in the Sierra Estrella Mountain Range in Arizona. The bunker complex spanned 43 kilometers in space and 890 feet in height. It took a herculean mining effort by the Army Corps of Engineers and a large ton of explosives to construct the complex. The bunker has multiple floors (called levels) and has provisions such as storage space for 52 UH-60 helicopters, 12 CH-47F heavy-lift helicopters, 8 CH-53E Super Stallions, a squadron of AH-64 Apache Longbows, a separate 12-aircraft squadron of F35 Lightning IIs, and various UAVs. It also has storage space for various vehicles such as JLTVs, MRAPs, HMMWVs, MTLVs, etc. The bunker has a receding but covered heliport intruding into the mountain range side. The large bunker is powered by a dual of land-based A4W nuclear reactors, installed on nuclear-powered aircraft carriers of the US Navy. It generates about 100 megawatts in all and can operate for 30 years at full maximum before being taken off for heavy maintenance and replacing of fuel rods. The bunker has a 4-kilometer deep water chamber intended for drinking and multipurpose use. Most of the space inside the bunker are large-spaced rooms for the cryogenic life support chambers, with each life support room housing around 500 people. Throughout the bunker are multipurpose function chambers, intended to be used as housing, armories, storage areas, habitable farming pods. ''Columbia'' is divided into two sections, the essential section (housing people, blueprints, food, etc.) and the forward utility section (the nuclear reactors, vehicles, and engineering equipment). The two sections are connected by a series of underground concrete-paved roads, and two tram lines intended for personnel use. The bunker has 12200 personnel in all, with 30 personnel intended to be watch officers, checking the bunker at all times; at a given period of time. Watch Shifts usually last for two years then going back to a state of cryosleep (Deep Sleep).
The very majority of the personnel are military, while so about 3000 staff are scientists, advisors, utility and engineering personnel, and various experts on several matters. Among the 3000 designated staff, are liaisons and advisors from the various executive departments (DoD, DoJ, DoE, etc). When the operation is activated, protocol and presidential directive would make the United States Secretary of Preservation (Tyson), currently under deep sleep; be Acting President under the 25th Amendment.

List of military units in Operation Continuity

1st Infantry Brigade Combat Team (Combined Arms)
*1st Battalion, 37th Infantry Regiment (Light Infantry) - US Army
*1st Battalion, 17th Field Artillery Regiment (Artillery) reinforced by A Company, 2nd Battalion, 12th Field Artillery Regiment (M270 MLRS) - US Army
*2nd Squadron, 7th Cavalry Regiment (Mechanized; M3 Bradley) - US Army

1st Armored Brigade Combat Team (Armored, reinforced by light infantry and mechanized)
*2nd Tank Battalion, 2nd Marine Division (M1A2 Abrams SEP) - USMC
*2nd Battalion, 3rd Marine Regiment (Light Infantry) - USMC
*1st Squadron, 1st Cavalry Regiment (Stryker Infantry) - US Army

Various support units, such as engineering, sustainment, etc.

At last, at the dawn of the 31st Century. Operation Continuity is activated. Will they meet their objective in medieval America?

Please feel free to put in criticism or suggestion. This is just a premise. If this is good enough by you guys. I'll expand it and make my own thread.
This should be made into canon flash man
What about the Catholic Church in the region
Catholicism already has local religious customs throughout Latin America (just about everywhere, really), with no communication with the pope, and more localization in general, those local customs are only going to get a stronger hold on Catholicism. This would likely give more variety of Catholics, with those in urban areas most likely staying closer to mainstream Catholicism, and rural areas being more region based, maybe even readapting more pagan traditions depending on how many tribal people are in the area.