[quote=@Vertigo]
<Snipped quote by Product>

Wait, okay, so let me just make this clear, but--- The Gerudo Valley, in this case, doesn't equal the place where all the Gerudo live, where all their houses and fortresses are and so on... right? But just the valley that leads from the Gerudo territory to Hylia? So taking over that would essentially cut off their free access to the lands beyond.

Because when I saw Gerudo Valley, I thought of Ocarina of Time (I haven't finished BoTW yet, sadly) and assumed you meant the main place where the Gerudo live and went "wait what".
[/quote]

Correct! In this RP the valley is the same as in OoT-with the canyon dividing the two people and a bridge to cross. During the war the Hylians gained control of the Gerudo side. The Gerudo live within the desert, and Gerudo Fortress guards the entrance to the desert (same as in OoT). The Gerudo still control Gerudo Fortress.