The Arabs whom Khaled and Amrou had led in the seventh century to the conquest of Syria and Egypt, had owed their victory neither to the superiority of their arms nor to the excellence of their organization. The fanatical courage of the fatalist had enabled them--as it has enabled their co-religionists in the present spring--to face better armed and better disciplined troops. Settled in their new homes, however, when the first outburst of their vigour had passed away, they did not disdain to learn a lesson from the nations they had defeated. Accordingly the Byzantine army served as a model for the forces of the Khalifs; ‘they have copied the Romans in most of their military practices,’ says Leo[37], both in arms and in strategy. Like the imperial generals, they placed their confidence in their mailed lancers; but the Saracen and his charger were alike at a disadvantage in the onset. Horse for horse and man for man, the Byzantines were heavier, and could ride the Orientals down when the final shock came. Two things alone rendered the Saracens the most dangerous of foes, their numbers and their extraordinary powers of locomotion. When an inroad into Asia Minor was projected, the powers of greed and fanaticism united to draw together every unquiet spirit between Khorassan and Egypt. The wild horsemen of the East poured out in myriads from the gates of Tarsus and Adana, to harry the fertile uplands of the Anatolic Themes. ‘They are no regular troops, but a mixed multitude of volunteers: the rich man serves from pride of race, the poor man from hope of plunder. Many of them go forth because they believe that God delights in war, and has promised victory to them. Those who stay at home, both men and women, aid in arming their poorer neighbours, and think that they are performing a good work thereby. Thus there is no homogeneity in their armies, since experienced warriors and untrained plunderers march side by side[38].’ Once clear of the passes of Taurus, the great horde of Saracen horsemen cut itself loose from its communications, and rode far and wide through Phrygia and Cappadocia, burning the open towns, harrying the country side, and lading their beasts of burden with the plunder of a region which was in those days one of the richest in the world. Now was the time for the Byzantine general to show his metal: first he had to come up with his enemies, and then to fight them. The former task was no easy matter, as the Saracen in the first days of his inroad could cover an incredible distance. It was not till he had loaded and clogged himself with plunder that he was usually to be caught.