* This was the first major strategic disagreement among the Bolshevik leadership. Trotsky and Vatsetis, his Commander-in-Chief, argued against pursuing Kolchak beyond the Urals so that troops could be withdrawn to the Southern Front. But Kamenev, the Eastern Front Commander, backed up by Lenin and Stalin, insisted on the need to pursue Kolchak to the end. The conflict went on through the summer, weakening the Red Army leadership at this critical moment of the civil war. It showed, above all, that Trotsky's authority was in decline. His strategy, both on the Eastern and the Southern Fronts, was rejected in favour of Kamenev's, who replaced Vatsetis on 3 July. Trotsky was furious, suspecting that Stalin and the Military Opposition were trying to oust him from the leadership. He wrote a letter of resignation, which was rejected by the Central Committee on 5 July. Trotsky's authority was further weakened by the reconstitution of the RVSR with four new members (Kamenev, Gusev, Smilga and Rykov) who all had differences with its Chairman.
It was the spontaneous Cossack uprising against this terror which enabled Denikin to break through. Thousands of Cossacks joined his troops as they advanced northwards in the spring. The main White force in the Donbass was led by General Mai-Maevsky. A chubby pear-shaped man with small piggy eyes and a pince-nez, he was the most unlikely military hero. 'If he had not worn a uniform,' Baron Wrangel wrote, 'you would have taken him for a comedian from a little provincial theatre.' Mai-Maevsky was notorious for his drunken orgies: by the end of the civil war there were few brothels in southern Russia where he was not known. Yet he was also one of the Whites' most able generals — a brilliant tactician, physically courageous and idolized by his 12,000 'coloured troops' (so-called because of their multi-coloured caps). Under his command the Volunteer Army advanced from the Donbass into the south-east Ukraine, easily defeating Makhno's Red partisans on the way. Kharkov was captured on 13 June, Ekaterinoslav on the 22nd, as the Red peasant conscripts ran away at the first sight of these crack White forces. Meanwhile, in one of the most remarkable campaigns of the civil war, Wrangel's Caucasian Army marched for forty days across the sun-baked south-eastern steppe — and at the end of it captured Tsaritsyn against superior forces on 19 June. The Red defenders of the Volga city fled in panic as soon as they saw Wrangel's British tanks approach. Forty thousand Reds were captured by the Whites along with a huge store of munitions.19
Denikin's breakthrough had been facilitated by a number of factors. The Whites had the advantage of superior cavalry and supplies, thanks in large part to the Allies. Despite his own physical immobility, the rotund Mai-Maevsky was a master improviser of the war of movement. He used his British aeroplanes for reconnaissance of enemy terrain and despatched his cavalry by railway to those points where they could inflict the most damage. One unit could fight at three different places in a single day. The Reds, meanwhile, were clearly overstretched by the climax of the fighting on the two main Fronts — the Southern and the Eastern. They were also suffering from a crisis in supplies. According to Trotsky, this was the main reason for the collapse of the Southern Front. 'Nowhere do the soldiers suffer so much from hunger as in the Ukraine,' he told the Central Committee on 11 August. 'Between a third and a half of the men are without boots or undergarments and go about in rags. Everyone in the Ukraine except our soldiers has a rifle and ammunition.' The supply crisis led to indiscipline and mass desertion. In the seven months of Denikin's advance, from March to October 1919, the Reds registered more than one million deserters on the Southern Front. The rear was engulfed in peasant uprisings, as the Reds resorted to the violent requisitioning of horses and supplies, forcible conscription of reinforcements and repressions against villages suspected of hiding deserters.20
The south-eastern Ukraine, where Makhno's partisans were in control,