In the second half of 1918 Krasnov advanced towards Povorino-Kamyshin-Tsaritsyn, intending to march on Moscow on his own, but was defeated. In the siege of Tsaritsyn in November–December 1918, Krasnov sent his Cossacks repeatedly to storm Tsaritsyn, only to see them cut down by Red machine-gun and artillery fire. Following his defeat at Tsaritsyn, Krasnov returned to the territory of the Don Cossack Host and refused all offers to co-ordinate with Denikin unless he was made Supreme Commander-in-Chief of the Whites first. After Germany's defeat (November 1918) in World War I, Krasnov set his sights on the Entente powers in his search for allies. The defeat of the Ottoman Empire in October 1918 allowed British, French and American naval forces to enter the Black Sea and for the first time allowed direct contaact between the Allies and the Whites. Krasnov appealed to the French, offering to allow them to establish a protectorate over the Don Host in an effort to sow discord between the Allies as the Don region had assigned to the British sphere of operations. However, Krasnov was informed that the Allies would not supply him with arms - arms would be supplied only to the Volunteer Army, which would then pass on arms to the Don Cossack Host if necessary. In January 1919 Krasnov was forced to acknowledge General Denikin's authority over the White movement, despite his animosity towards Denikin.