Battle of the Trench enemy in the open (which led to victory at Badr), and waiting for them inside the city (a lesson learnt from the defeat at Uhud) were both suggested. Ultimately, the outnumbered Muslims opted to engage in a defensive battle by digging deep trenches to act as a barrier along the northern front. The tactic of a defensive trench was introduced by Salman the Persian. Every capable Muslim in Medina including Muhammad contributed to digging the massive trench in six days. The ditch was dug on the northern side only, as the rest of Medina was surrounded by rocky mountains and
Battle of Badr with the polytheists, we shall be steadfast in our support to you. In war and in peace, we shall be consistently faithful to you." So, the Muslims continued to march towards Badr. By 11 March both armies were about a day's march from Badr. Several Muslim warriors (including, according to some sources, Ali) who had ridden ahead of the main column captured two Meccan water carriers at the Badr wells. Expecting them to say they were with the caravan, the Muslims were horrified to hear them say they were with the main Quraishi army. Some traditions also say that, upon