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
Union Army of the Shenandoah the Shenandoah Valley to produce foodstuffs for the Confederacy, torching farms and more than 2,000 mills. Reinforced again in reaction to the threat of Sheridan's 31,000-man army, Early moved against Sheridan once more. After a decisive cavalry victory by Union forces under Brig. Gen. George Armstrong Custer at the Battle of Tom's Brook, Early’s army launched a surprise attack against Sheridan at the Battle of Cedar Creek on October 19. Initially successful, the Confederates were repelled by a Union counterattack and the Valley was firmly under Union control. Following their victory, portions of the Army of the Shenandoah were detached