But I am being asked for Orcs in order to clear provinces
The developers have decided that negotiation should be limited to approximately the Provinces that you could acquire within the military limits of the Squad Size technologies. Their means of doing so is to require Orcs so that you can guard negotiated provinces in Ring 11 and beyond.
You need 160 Provinces to open the Advanced Scouting chest for chapter VIII, and 222 provinces are available to you in the nearest 10 Rings, so you have a margin of 62 sectors more than you'll need. In effect, once you've reached the current boundary you need to turn to Tournaments for additional Relics/Runes/Knowledge Points. As part of that emphasis, Tournaments will soon become a mandatory technology.
If you ALREADY have Provinces in Ring 11 or beyond, then count your blessings. You got them on the cheap.