Is this intended behavior?
Florence gets hit with Horde. I push out then gift crossbowmen priority #1.
CS pushback is thus strong and, fortuitously, back into Roman territory.
This triggers Rome and they join the fray with their forces. Barbs now don't stand a chance.
Adding to their misery, the barb reinforcements decide to work towards their band of brothers. This means running a long meatgrinder/gauntlet that is Flo forces, pissed Romans, and my freeflowing gifts before even really setting up.
In this screenshot you can see the results of the bloodbath. (sadly a few turns before the end of the "event." No turn screencap. Sorry.)
Fast forwarding, the lone barb hunkers down and tries to fortify/heal to some state of combat effectiveness. I *think* at one point there is a in the yellow barb trireem in that fog of war. Feels like I remember him turning tail and running but lets assume he's there anyway. Note, Flo not coastal.
Lone barb barely heals into the yellow on the last turn of the raid still hiding out in the pictured spot. Next turn...
"FLORENCE HAS FALLEN."
Um, yeah. Must have been some serious "tonight we dine in hell" action I was not able to observe on the barbs turn.
I like the mechanic very much but a few niggles make the likely most logical course of action just accepting the CS will fall and you dig it out yourself.
- The mere presence of a barb unit (even one near death) seemed to be enough to overrun all forces. - The CS defenses, their troops, and Rome all seemingly were bested by this one little Chuck Norris-esq unit.
- Space is at an utter premium in and around CS. Almost every tile of a CS is occupied by troops, especially if you start gifting and any other civ is anywhere nearby (likely) I won't say this was a no-win scenario for the barbs but mere attrition would have been a stunning "win" and one recounted in song and literature for ages.
- You are, thus, mostly boxed out even if you keep troops in the area. Had this in Bucharest. Couldn't move around in the CS, a majority of steps out to surrounding tiles were "Do you Declare War on X civ?" Way too early for open borders with anybody and kind of a big ask just to clear a CS (likely one their neighbors are keen on as well.)
I dig it as it adds a sense of urgency and import to actually living up to your "ally" status more than in name only. But, as it settles out, its mostly futile even in situations where troops were ready, reinforcements were cranked out @ max intervals, and I made it priority #1. More usual circumstances would make it an even less worthwhile endeavor. Accept you can't "save" your already invested influence, let CS fall, get back some cred for "liberation" and the XP from fighting to boot.
Weirdly, a popup "CS has fallen" is probably preferable frustration wise to going through the motions for turns prior since its mostly for naught.