Battle Of Ahzab The Battle of the Ahzab (Trench) was a fortnight-long siege of Yathrib (now Madina) by Arab and Jewish tribes. The strength of the confederate armies is estimated around 10,000 men with 600 horses and some camels, while the Muslims numbered 3000. The battle began in 627 CE. On the advice of Sahabi, Salmaan Faarsi (RA), they decided that a trench should be dug. The largely outnumbered defenders of Madina, mainly Muslims led by Muhammad (PBUH), dig and fought the confederates from a trench. They made the trench 5 meters deep and 5 meters wide. On the 27th night of the siege, a severe storm approached Madina. The tents of Kuffar were uprooted, goods were blown about, fires were extinguished and the whole kuffar army was in utter fear and in a state of confusion. Under the circumstances, the kuffar army fled in disarray.