The Assyrian independence movement is a political movement and ethno-nationalist desire of ethnic Assyrians to live in their indigenous Assyrian homeland in northern Mesopotamia under the self-governance of an Assyrian State.
The tumultuous history of the traditional Assyrian homeland and surrounding regions, as well as the Partition of the Ottoman Empire, led to the emergence of modern Assyrian nationalism. To this respect, Assyrian independence movement is a "catch-all" term of the collective efforts of proponents of Assyrian nationalism in the context of the modern nation state. As a result of genocide and war, the Assyrians were reduced to a minority population in their indigenous homeland, resulting in political autonomy being unattainable due to the security risks, and the rise of the movement for Assyrian independence as it exists today.
The territory that forms the Assyrian homeland is, similarly to the rest of Mesopotamia, currently divided between present-day Iraq, Turkey, Iran, and Syria. The efforts are specifically in the regions where larger concentrations still exist, and not the Assyrian homeland in its entirety, those regions with large concentrations being Erbil, and the Duhok Governorate in Iraq, the latter two being located in the Iraqi Kurdistan region and the Al-Hasakah Governorate in Syria. Mosul and the Nineveh Governorate had a sizable Assyrian presence prior to the takeover and forced expulsion of the Assyrian population by the Islamic State in 2014.
In his 53 years as Patriarch of the Assyrian Church of the East, Mar Eshai Shimun XXIII petitioned the League of Nations, and then the United Nations for an Assyrian Homeland before stepping down as Patriarch in 1973. The assassination of Mar Eshai Shimun XXIII in 1975 was a demoralizing moment to Assyrian freedom fighters, as he was a significant spiritual and temporal leader.
The independence movement is active both within the homeland and throughout the global diaspora, with much resistance from the local Middle Eastern states and regions, as well as the Kurdish.