Which countries are part of Southwest Asia? What are the common features of their nature?

Southwest Asia includes all the countries of the Arabian Peninsula, as well as Bahrain, Kuwait, Iraq, Syria, Israel, Lebanon, Palestine, Turkey, the former Soviet Transcaucasia (Georgia, Armenia, Azerbaijan and three unrecognized states), sometimes this region includes Iran and even Afghanistan, but the latter is controversial. The island state of Cyprus can also be included in this region, as well as the unrecognized Turkish republic on it and Turkey itself and even Egypt, since Sinai is located in Asia.

Common features of nature:

Many deserts and mountains, few forests.
Water scarcity.
Dry and hot climate. The region is roughly halved by the tropical and subtropical climatic zones.