The military history of Iran has been relatively well-documented, with thousands of years' worth of recorded history. Largely credited to its historically unchanged geographical and geopolitical condition, the modern-day Islamic Republic of Iran (historically known as Persia) has had a long and checkered military culture and history; ranging from triumphant and unchallenged ancient military supremacy, affording effective superpower status for its time; to a series of near-catastrophic defeats (beginning with the destruction of Elam), most notably including the ancient Greek kingdom of Macedon as well as the Asiatic nomadic tribes at the northeastern boundary of the lands traditionally home to the Iranian peoples.