Who is the northwestern  neighbor of the country that boarders Iran on the northeast?
Turkmenistan Turkmenistan ( or ; Turkmen: Türkmenistan/Түркменистан/توركمنستان , ), formerly known as Turkmenia, is a country in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north and east, Afghanistan to the southeast, Iran to the south and southwest, and the Caspian Sea to the west.
North Khorasan Province North Khorasan Province (Persian: استان خراسان شمالی‎ ‎ , "Ostān-e Khorāsān-e Shomālī") is a province located in northeastern Iran. Bojnord is the capital of the province. In 2014 it was placed in Region 5.