@cappytan
Pakistan is not an Arab country, although it is predominately Sunni Muslim and does have nuclear weapons. I'm not sure why it hasn't used them on Israel - maybe they focus on competition with India, or maybe because the Pak government is supposedly allied to the West.
Iran is predominately Shia Muslim and has nothing to do with Pakistan.
Hamas rules Gaza and is a Sunni militia/extremist group made up of Arabs.