What country is modern day Arabia?

"Arabia" doesn't refer to a single modern-day country. It's a geographical term referring to the Arabian Peninsula, which includes:

* Saudi Arabia

* Yemen

* Oman

* United Arab Emirates

* Qatar

* Bahrain

* Kuwait

The Arabian Peninsula is also sometimes referred to as the Arab World, which includes countries like:

* Egypt

* Syria

* Lebanon

* Jordan

* Iraq

* Morocco

* Algeria

* Tunisia

* Libya

* Mauritania

* Sudan

* Somalia

* Djibouti

* Comoros

So, while "Arabia" might sound like one country, it actually encompasses a large region with many different nations.