The world is huge, and we should not grow complacent with our position in it, for our neighbors will not necessarily do the same. We shall set our sights on expanding our borders and making ourselves stronger, lest we risk being swallowed up by growing neighbor states.
Advance tree
It has no requires, so the game files don’t say where this goes. When the game builds the Discovery tree, it adds this at the end of a branch with room for it, in the same spot in every campaign.