Wallace arranged his spearmen in four schiltrons—circular, defensive hedgehog formations, probably surrounded by wooden stakes connected with ropes, to keep the infantry in formation. The English, however, employed Welsh longbowmen, who swung tactical superiority in their favour. The English proceeded to attack with cavalry and put the Scottish archers to flight. The Scottish cavalry withdrew as well, due to its inferiority to the English heavy horses. Edward's men began to attack the schiltrons, which were still able to inflict heavy casualties on the English cavalry. It remains unclear whether the infantry shooting bolts, arrows and stones at the spearmen proved the deciding factor, although it is very likely that it was the arrows of Edward's bowmen. Gaps in the schiltrons soon appeared, and the English exploited these to crush the remaining resistance. The Scots lost many men, including John de Graham. Wallace escaped, though his military reputation suffered badly.