There is evidence available now, not available to Ralph H. Alexander.
From the Assyrian Court records we know Magog was a people (a nation) along with Meshech, Tubal, and Togarmah [Eze 38:3-6] who the Assyrians had dealings with. They were nations stretching across the so-called fertile crescent, including ancient Asia Minor from west to east.
These records show ancient Gomer [Eze 38:6], an enemy of the Assyrians invading Asia Minor by coming down from an area around the northeast shore of the Black Sea. Archaeologists know the militant leader called “Gog” in [Eze 38/39] leading a confederacy of these nations against the invading Gomer.
Gog was the historical leader the Greeks called 'Gyges of Lydia'. This Gyges of Lydia was known to the Assyrians as “Gugu, King of Ludu” and “Gugu of Magugu" which is equivalent to the Bible's reference 'Gog of Magog'. In Akkadian 'ma' means 'land', so in Akkadian "Ma-gugu" means “the land of Gugu” which becomes our Ma-gog. “Magog” means “the land of Gog”.
Ralph H. Alexander was forced to spiritualize historical references he didn't understand, but scholarship and specifically Assyriology have come along way in 40 years saving us from the dangerous practice of taking these references too figuratively.