sorry if this question is too stupid or something, but couldn't find the answer anywhere.
Basically, there are 2 (conditional) questions in one:
1. can I file to patent a process in US?
2. if so: can I file for a patent being from another country?
Context
I tried to file for a patent in my country (Argentina). However, law in my country indicates that I can't file processes (including software) or flows comprised of different elements. Instead, I had to file for Intellectual Property.
Now, the system I'm trying to patent uses already known technologies (plus new software) in order to create a new process flow that is completely original. Simply put: it's an app that connects to a certain governmental area in a very special way to perform a whole new process via AI. The system itself is very useful for the community and replaces an existing process with less than 5% of the cost, less human power and accuracy increased by 20x at least.
In short: exception made of software, all elements exists, only that I want to use them in a particular way (dealing with governments, there's a whole legal side to it, of course, but it has to be considered on a one-by-one basis, so I don't care for that on this question, just assume everything is fine on that side) .
While right now I have no hurry to patent this on another country, I want to cover all bases with this since there's quite an investment (pretty high, at least for me). And filing for a patent on US would make this a lot simpler than patenting this on every country.
Also, I'm aware flow systems can be patented. A good example is Uber: all the technologies and systems for their patents existed before Uber, they just patented a way to use them (in an extremely abstract way).
Hence my questions: can I patent something like this in US?