Banu Qurayza after his victory over the Meccans in the Battle of Badr, Banu Qaynuqa threatened Muhammad's political position and assaulted a Muslim woman which led to their expulsion from Medina for breaking the peace treaty of Constitution of Medina. The Qurayza remained passive during the whole Qaynuqa affair, apparently because the Qaynuqa were historically allied with the Khazraj, while the Qurayza were the allies of the Aws. Soon afterwards, Muhammad came into conflict with the Banu Nadir. He had one of the Banu Nadir's chiefs, the poet Ka'b ibn al-Ashraf, assassinated and after the Battle of Uhud accused the tribe of
Operation Badr (1973) Calendar, which meant that Muslim soldiers would be fasting. It was in Ramadan that the Muslims won their first victory at the Battle of Badr in the year 624. Opting for something more inspirational than the High Minarets as a name, Operation "Badr" was chosen by Egyptian commanders as the codename for the assault. In any crossing of the Suez Canal by Egyptian forces, success was highly dependent on the performance of the Egyptian Corps of Engineers, which had several daunting tasks to accomplish. Israeli engineers had constructed a massive artificial sand barrier spanning of the canal's east bank (except