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
Operation Badr order of battle Operation Badr order of battle This is the order of battle for Operation Badr, an Egyptian military operation that initiated the Yom Kippur War against Israel along the Suez Canal in the Sinai on October 6, 1973. As neither belligerent has released an official order of battle, this list remains incomplete (for example, concerning brigades within divisions of the Third Army) and largely conjectural. An asterisk indicates Egyptian units that participated in the operation. The Sa'iqa (lit. ""lightning"") were Egyptian commando forces. General Headquarters (Center Ten): Commander in Chief - Colonel General Ahmad Ismail Ali Chief of Staff - Lieutenant