Title: The Identity of the 7 Heads and the 10 Horns on the Beast of Revelation 13
by Phillip Goodman
I carefully read this article which includes Iran as part of the 10 Horns and 7 Heads. It is very deep and I'm sure I missed so much, but Phillip Goodman does a marvelous job of summing his study up and listing 11 nations. He includes Iran.
He goes into the two legs of the Roman Empire and much about the Byzantine part of it, and the immense Ottoman Empire, and what led to his list of the nations making up the Eastern Leg nations.