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.
Taiwan Taiwan ( ), officially the Republic of China (ROC), is a state in East Asia. Its neighbors include China (officially the People's Republic of China, PRC) to the west, Japan to the northeast, and the Philippines to the south.