Advance
Formal Diplomacy
At a time where power is shifting from the hands of powerful individuals towards control by a centralized authority, it is wise to build bridges and open channels of communication between us and our neighbors. Diplomacy is key, and more so than ever in the face of these rising powers.
Advance tree
The game files don’t say where this goes: it has no requires, so the game places it in the 
Absolutism tree itself.
Modifiers
Definitionin_game/common/advances/4_choices_dip.txt:336
338icon = glorious_arms
339for = dip