Fergus Mac Roich led the army of
Queen Medb against
Cúchulainn and he rose to face
them despite his many wounds, but rather than fight again he reminded Fergus of their
previous agreement and now it was the turn of Fergus to run from Cúchulainn just as
Cúchulainn had previously run from him, and when the army of Medb saw their leader
running they ran also.
This ended the war over the Brown Bull of Cooley, the army of Medb had been defeated
and went home to nurse their wounds. It was all for naught in the end as the Brown
Bull was taken to Connaught where he killed the White Bull of Ailill and then he returned
to Cualgne where he was so exhausted from the ordeal and his exertions that his heart
burst and he died.