Brigands and Corse never have been at war. The two organizations often cooperated, but you need to remember that inRP corse and brigands aren't one big merry family.
Brigands are split to many clans, normally each base has its own clan, though some of the larger ones might have 2 or 3. Sometimes bases aren't even fully owned by one clan and are split among lesser clans, some clans use the bases of other clans and so on. Though the Brigands are generally allied, and assist each other. Like a big familly with many branches.
Union Corse is as it hints - a union of many corse famllias, each with their own agenda. Similar to the corse only instead of bandit-like more mafia-like relationship. The union is merely there to give them a collective protection from the lawfuls and unlawfuls alike.
Now, among the brigands and corse you can find Corse famallias that have better relationship with a certain Brigand clan than with the rest of the corse families, and you could find a Brigand clan that has sworn enemy in the form of some corse family. It's relatively dynamic.
Anyhow, I don't think official factions should occupy 2 IDs - if factions in Gallia can't be active enough to stay official, so be it - let them lose official status and someone better take the place.
![[Image: p2SKLap.jpg?1]](http://i.imgur.com/p2SKLap.jpg?1)