Black Dragon City was not only the political center of the Gustav Empire, but also its most important military center, in fact a frontier city.
To the southeast of Black Dragon City lay the port and the sea, while to the northeast stood the towering Wix Mountain Range, which separated the continent from a small northern country, Vic. The west and southwest were its own territory, and to the northwest was the great enemy, the Lunbak Empire.
In other words, as the capital, Black Dragon City cut off the Lunbak Empire's access to the ocean, turning it completely into an inland country. The Lunbak Empire's so-called "opening up the southern trade route" was essentially a ploy to seize the capital of the Gustav Empire...
