Thus began the long series of campaigns called "Ghazwah" when the Prophet was personally in command; and "Saria," when one of his lieutenants led the van. We shall only mention the most characteristic of these innumerable expeditions; putting on one side the first minor skirmishes and come at once to the famous Ghazwah of Badr. [Sidenote: THE GHAZWAH OF BADR (_Year of the Hegira, A.D. 624_)] A caravan of exceptional importance, comprising a thousand camels, had been sent into Syria by the citizens of Makkah. It was to bring back the most valuable and highly-prized merchandise. This was the opportunity awaited by the Prophet. If he succeeded in capturing the caravan, he would deal a ruinous blow at those who banished him and, as he hoped, without useless bloodshed, for the escort of the convoy numbered at most two score. These men could oppose no real resistance and would be obliged to surrender without fighting. The Prophet arrived too late. The caravan had gone past. He made up his mind to fall upon it by surprise during its return journey. One of his partisans, posted by him to watch the roads, brought the news that the caravan had been seen, and would soon be near Al-Madinah, following the usual route, between the mountains and the sea. Thereupon, the Prophet summoned all the Believers, of any origin whatsoever. The call was answered by more than three hundred men, all desirous of inflicting exemplary punishment on the idolaters. Seventy-three Mohadjirun joined the ranks and, for the first time, two hundred and forty Ansars stood shoulder to shoulder with their brothers in Islam. Seventy camels were gathered together to carry water and food; and also to relieve men on foot who took it in turns to ride. The expedition was poor in cavalry, possessing only four horses whose names were Beraja, Al-Bahrmi, Yasum and Sail. They were led riderless by the bridle, only to be used at some propitious moment during the battle. The "Liwa," or white banner, was confided to Musab-al-Abdri, and the flag of the Ansars was carried by Sad ibn Muaz. Unfortunately, the organisation of such a numerous "qawm" could not be kept secret. The "Hypocrites" and the Banu Israil, watching every step taken by Mohammad, found out what he was preparing and also his destination. They send messengers to Abu Sufyan, the leader of the caravan, to inform him of the threatening danger. He sent an Arab of the Ghifar tribe, named Dhamdham, to beg for assistance and promised him a rich reward if, thanks to his diligence, the convoy could be saved. All the inhabitants of Makkah had contributed, more or less, to the organisation of the great caravan; and, counting upon its approaching return, they were already revelling in the fine profits that would accrue to them. All day long, in groups, they wended their way to the city gates, gazing, till their eyes ached, into the depths of the valley following the road to Syria, hoping to catch sight of a messenger.