Islam Nation vs Islamic Ummah

Islam Nation and Islamic Ummah both are nouns.

Word	Noun	Adjective	Verb	Adverb
Islam Nation	Yes	No	No	No
Islamic Ummah	Yes	No	No	No

As nouns, Islam Nation and Islamic Ummah are synonyms defined as:

Islam Nation and Islamic Ummah: the Muslim community or people, considered to extend from Mauritania to Pakistan

Other synonyms of Islam Nation include Muslim Ummah, Umma, Ummah.

Islam Nation (noun)	Islamic Ummah (noun)
the Muslim community or people, considered to extend from Mauritania to Pakistan	the Muslim community or people, considered to extend from Mauritania to Pakistan