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 (1973) of further attempts to capture Hamutal Hill. By the end of the day Adan's division alone had lost around 100 tanks. Operation "Badr" was the opening battle of the Yom Kippur War in the Sinai, and the first major Arab victory against the Israelis in years. By repelling a division-sized counterattack on October 8, and establishing bridgeheads on the east bank to a depth of around 15 kilometers, the Egyptians had accomplished the objectives of Operation "Badr". At the start of the war, U.S. Secretary of State Henry Kissinger believed that the better-equipped Israelis would secure victory within a few