I agree, Gino. It's true meaning is elusive. Gino's post linked below to give the reader context.
As the Archangel, Michael, did battle with the Prince of Persia - I reckon you are right to think "The Assyrian" is a heavenly being. But - I also reckon this "Assyrian" is in charge of a portion of the world (as is the Prince of Persia - who has spiritual dominion over Persia).
There are so many armies fighting over Syria and the surrounding regions. There is a major battle going on for dominion over Syria on this earthly plane. I assume this same battle is taking place in the heavenly realms.
It's weird, but I am going to say it anyway. Every since Barack Obama came on the scene, the plop has truly hit the fan. There is something very "off" about him. Rumours of his (maybe) rampant homosexuality. The Larry Sinclair declaration of homosexual encounters with Obama when Obama was a senator. The rumours of Michelle actually being a transsexual etc. The Joan Rivers taped interview, where she confirmed these rumours. And then (conveniently) died soon after. The Obama's are seriously sinister. On a trip to Egypt, Obama was looking at a picture of a pharaoh and said, "Hey - that looks like me". And it did !! That movie (can't remember the name) where the Anti Christ looked SNAP to Obama. Seriously - it may as well have been his twin!!
My point is that I often think of Barack Obama when I hear the word "Assyrian". I have come to suspect that Obama was raised and educated for the role he played (and is still playing) in the destruction of the Christian led family. He is the earthly counterpart of the heavenly Assyrian.
I am obviously influenced by the testimony of Natan. Natan was adamant that Obama is Gog. It's not a stretch, Gino. The Dems have a sinister control over the politics in America. They control the media and the courts. AND - Obama showed his dislike and contempt for Israel in everything he did. ALL this is being allowed by Almighty God because of the blasphemous Abraham Accords. These Accords are what have toppled President Trump.
It can only end in war. And this war WILL involve powerful weapons that can destroy the entire world and all her peoples. Almighty God cannot allow this. He simply has to intervene beforehand. This alone, shows how very close we are. Our LORD needs to come soon.
Maranatha, LORD Jesus.