It must bring light and warmth to all this vast region of land.

Somewhere in the vast region between those positions lies a settlement.

We're the only ones with enough discipline to maintain strict standards over such a vast region.

So are many of the people who inhabit this vast region.

Since then, many developments have taken place in that vast region.

The attack played out like so many others in this vast, lawless region.

We have been attracted to the vast regions of space outside our Earth bubble and what they could hold.

This vast region is characterized by many shared plant and animal species.

Many superpowers have several interests in this vast rich region.

Why else would they allow vast regions to return to desert?