In the event, the Roman forces surprised Pyrrhus by proving a good match for his own, which was unexpected, given that the Romans were temporary levies pitted against professionals. The Romans won one major battle (Beneventum) and lost two (Heraclea and Asculum), although in these they inflicted such heavy casualties on the enemy that the term "Pyrrhic victory" was coined. The defeat at Beneventum forced Pyrrhus to withdraw in 275, but it was not until 272 that the rebel "socii" were reduced. The surviving accounts for this later phase of the war are thin, but its scale is clear from Rome's celebration of 10 triumphs, each implying the slaughter of at least 5,000 enemy.