I found some of these country listings dubious. Nearly the only time I find a usage of "Southwest Asia" is in reference to Afghanistan, Pakistan and Iran.... The other countries (Armenia, Bahrain, Cyprus, Sinai (eastern Egypt), Iraq, Turkey, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen) are "technically" part of the region but are almost always referred to the "middle east". The US DoD seems to have the strongest tendency to refer to Afghanistan as SWA (southwest asia). I would add Afghanistan and Pakistan to the primary list.
http://www.unhcr.org/4ec231030.html http://www.dodig.mil/IGInformation/archives/FY2014_COPSWA_compliant1.pdf http://www.dodig.mil/hotline/posters/for_download/Southwest%20Asia%20Poster_3.pdf http://www.uso.org/Centers/USO-Centers---Southwest-Asia.aspx