before stating Uber or personal drive?

I am not sure what you are asking. Do you want to offer your services in other countries while you travel? I would contact Uber directly with this concern as most people work for them locally.

Go where? Are you talking about coming to the US to drive for Uber or having the option to drive while you are here? I believe you need to be a citizen to drive here.

I am not sure where you are going or what you are asking. In terms of international drivers licenses, I never heard of such a thing. The only drivers license that I know workers in other places, and only a few, is one for motorcycles.

You need a US driver's license to drive in the US. So you either have to have the right kind of visa or be a green card holder to drive in America.

You will need a green card to drive in the US. I know there are some visas that make allow you to drive such as a student visa or gifted skill visa but other than that, you will not be able to drive without citizenship or a green card.