> There was a brief period when the Muslim Brotherhood controlled Egypt.
In the thats in the past. However they didn't break the peace agreement with Israel.
> Hamas controls Gaza
Gaza is not a country.
> Hezbullah controls a big chunk of southern Lebanon.
True on that but without Israel there Hezbollah would have little reason to oppose the US.
At the same time the reality is that Syria is militarly over, Jordan has made peace, Saudi Arabia and the UAE are basically allies, Turkey has no interest in attacking Israel, Egypt is incapable of true forign policy at the moment.
So we have basically all major powers, and Hezbullah.