And the Assyrian Church?

Patriarch Louis Raphael I Sako: The unity of the Church of the East
The Church of the East: There can be only one (Pro Unione)
Chaldean Patriarch gambles on re-establishing “Church of the East”

And a response by Bishop Mar Awa Royel of the Assyrian Church of California: Authenticity in Unity: A Personal Reflection on Present-Day Questions Concerning the Unity of the Church of the East