RTW : Victory Conditions

How and where can I mod the victory conditions ?
Thks.

As you have 1.5 data\worlds\maps\camapigns\imperial_campaign\descr_win_conditions.txt

This is an example of what you can have as the victory conditions, they are taken from my mod so do not use them as my mod uses a new map. You can set any province as a victory condition:

romans_julii
hold_regions Latium Syria Zeugitana Nile_Delta Attica Sicilia_Graecus Beribracia Aeduia Arvernia Macedonia
take_regions 70
short_campaign outlive_factions
gauls