Fissoa communicated with Barcan leadership, and even mentioned they would not be able to help until monsters were cleared. Barca at one point offered to help kill monsters, which would free up Fissoan forces to march with them right away.
But, they ended up marching ahead anyway, rather than kill monsters where Fissoa actually needed it. Fissoa was literally unable to help, being attacked all over the place.
All the extra monsters everywhere was kind of a deathblow in many regards, as it stopped allies from aiding them in a war, until now with those things dealt with.
