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
Army of the Three Guarantees Three Guarantees was created on February 24, 1821, and continued battling Spanish royalist forces which refused to accept Mexican independence. These battles continued until August 1821, when Iturbide and Spanish Viceroy Juan de O'Donojú signed the Treaty of Córdoba, virtually ratifying Mexico's independence. The Army was a decisive force during the Battle of Azcapotzalco. The victory in this last battle of the war cleared the way to Mexico City. On September 27, 1821, the Army of the Three Guarantees triumphantly entered Mexico City, led by Iturbide. The following day Mexico was declared independent. By that time, the Army of the