Persia
Persia was an ancient Earth region and empire, ruled by the Persians, that was located in southwestern Asia, and existed during the mid-1st millennium BC. 

In 2267, Trelane claimed to possess battle flags and pennants from "the hordes of Persia" among others. ()

Persia invaded Greece in 480 BC, engaging the Spartans, led by King Leonidas, at the Battle of Thermopylae. ()

Persia was succeeded by Iran. ()

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Earth countries