men each, while the 69th Army fielded some divisions which could only count on 1,000–1,500 soldiers. Some divisions had as little as 20–50 mortars to provide fire support. This shortage in manpower and equipment led Vatutin's Southwestern Front to request over 19,000 soldiers and 300 tanks, while it was noted that the Voronezh Front had only received 1,600 replacements since the beginning of operations in 1943. By the time Manstein launched his counteroffensive, the Voronezh Front had lost so much manpower and had overextended itself to the point where it could no longer offer assistance to the Southwestern Front, south of it. The 1st Czechoslovak Independent Field Battalion, commanded by Ludvík Svoboda, was also attached to the Soviet forces and subsequently participated in fighting alongside Soviet forces at Sokolov. Manstein's counterattack What was known to the Germans as the Donets Campaign took place between 19 February and 15 March 1943. Originally, Manstein foresaw a three-stage offensive. The first stage encompassed the destruction of the Soviet spearheads, which had over-extended themselves through their offensive. The second stage included the recapture of Kharkov, while the third stage was designed to attack the Soviet forces at Kursk, in conjunction with Army Group Center – this final stage was ultimately called off due to the advent of the Soviet spring thaw (Rasputitsa) and Army Group Center's reluctance to participate. First stage: 19 February – 6 March On 19 February, Hausser's SS Panzer Corps was ordered to strike southwards, to provide a screen for the 4th Panzer Army's attack. Simultaneously, Army Detachment Hollidt was ordered to contain the continuing Soviet efforts to break through German lines. The 1st Panzer Army was ordered to drive north in an attempt to cut off and destroy Popov's Mobile Group, using accurate intelligence on Soviet strength which allowed the Wehrmacht to pick and choose their engagements and bring about tactical numerical superiority. The 1st and 4th Panzer Armies were also ordered to attack the overextended Soviet 6th Army and 1st Guards Army. Between 20 and 23 February, the 1st SS Division Leibstandarte SS Adolf Hitler (LSSAH) cut through the 6th Army's flank, eliminating the Soviet threat to the Dnieper River and successfully surrounding and destroying a number of Red Army units south of the Samara River. The SS Division Das Reich advanced in a northeastern direction, while the SS Division Totenkopf was put into action on 22 February, advancing