Why were Persians (Iranian) hard to defeat for the Eastern and Western Roman empire considering that the Roman Empire was bigger and more advanced? - Quora
![Achaemenid Empire: A Captivating Guide to the First Persian Empire Founded by Cyrus the Great, and How This Empire of Ancient Persia Fought Against ... in the Greco-Persian Wars (History of Iran): Achaemenid Empire: A Captivating Guide to the First Persian Empire Founded by Cyrus the Great, and How This Empire of Ancient Persia Fought Against ... in the Greco-Persian Wars (History of Iran):](https://images-na.ssl-images-amazon.com/images/I/71nYZ79HzKL.jpg)
Achaemenid Empire: A Captivating Guide to the First Persian Empire Founded by Cyrus the Great, and How This Empire of Ancient Persia Fought Against ... in the Greco-Persian Wars (History of Iran):
![FORMING THE PERSIAN EMPIRE THROUGH DIPLOMACY! HOI4 MP BUT IT'S MODDED ROLEPLAY! - HOI4 Multiplayer - YouTube FORMING THE PERSIAN EMPIRE THROUGH DIPLOMACY! HOI4 MP BUT IT'S MODDED ROLEPLAY! - HOI4 Multiplayer - YouTube](https://i.ytimg.com/vi/MdGkx8yQB8E/maxresdefault.jpg)
FORMING THE PERSIAN EMPIRE THROUGH DIPLOMACY! HOI4 MP BUT IT'S MODDED ROLEPLAY! - HOI4 Multiplayer - YouTube
![The Big Data Stats on Twitter: "The Persian Empire was the largest empire in history by share of the world's population at 44%. This is what it could look like if the The Big Data Stats on Twitter: "The Persian Empire was the largest empire in history by share of the world's population at 44%. This is what it could look like if the](https://pbs.twimg.com/media/EZAxNbrWoAAIZmo.jpg)
The Big Data Stats on Twitter: "The Persian Empire was the largest empire in history by share of the world's population at 44%. This is what it could look like if the
![5. The Achaemenid Empire's 40 or so Satrapies at the height point of... | Download Scientific Diagram 5. The Achaemenid Empire's 40 or so Satrapies at the height point of... | Download Scientific Diagram](https://www.researchgate.net/profile/Dimitrios-Dendrinos/publication/317434220/figure/fig16/AS:503358175838220@1497021349702/The-Achaemenid-Empires-40-or-so-Satrapies-at-the-height-point-of-the-empire-Their_Q640.jpg)