Since the horde under the lead of Var'bukk withdrew from the actual fight, the two tribes that were supposed to hold off the pinkskin's advance receive devastating casualties that reduced the two tribes to be only medium size tribes.
"Why didn't we give them a hand?" was the common question that was thrown to Var'bukk which he answered with a simple answer, 'They are on their own. They had the chance of working with us to consolidate their tribe's prowess but their chieftain's wasted the chance because they thought that they could do it by themselves.'
The advance of the pinksins was unstoppable, tribe after tribe of the orcish kind fell unto their hands and with the help of the long ears that provided them with the much needed help, and they trampled over even the strongest tribes.