Complex sentence: They mainly reside in northern Iraq and share close cultural ties with Turkey, Azerbaijan Republic, Iranian Azerbaijan, and the other Turkic countries and linguistic ties with Azerbaijani, a Turkic language mutually intelligible with Istanbul Turkish, spoken mainly in Azerbaijan Republic and Iranian Azerbaijan.
Split into simpler sentences: They mainly reside in northern Iraq and share close cultural ties with Turkey, Azerbaijan, Iranian Azerbaijan, and other Turkic countries. Their language is closely related to Azerbaijani, a Turkic language mutually intelligible with standard Turkish, spoken mainly in Azerbaijan Republic and Iranian Azerbaijan.