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) 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