Whatever works
here is a map from https://www.vox.com/a/maps-explain-the-middle-east
The dialects of Arabic today
This map shows the vast extent of the Arabic-speaking world and the linguistic diversity within it. Both go back to the Caliphates of the sixth and seventh century, which spread Arabic from its birthplace on the Arabian Peninsula across Africa and the Middle East. Over the last 1,300 years the language's many speakers have diverged into distinct, sometimes very different, dialects. Something to look at here: where the dialects do and do not line up with present-day political borders. In places where they don't line up, you're seeing national borders that are less likely to line up with actual communities, and in some cases more likely to create problems.
