Also peasants weren't levied that often in Europe, usually only if the commanders were sure that they would get into a real big battle and in that case they usually needed many soldiers. Usually in Europe warfare consisted of raiding enemy terriory or sieges of enemy castles and town by small mobile forces usually consisting of cavalry(knights, squires, sergeants and other cavalry mercenaries) and maybe some mounted infantrymen(usually professional, crossbowmen would have been common as many professional infantry were crossbowmen and some had enough money to buy a horse). In Europe large battles were often avoided because of the losses that both sides inevitably would suffer, but when there was no other option they usually met their foes on the battlefield... or hid inside their castles.