cent of the pre-war number. 4th Mechanized Corps The 4th Mechanized Corps commanded by Andrei Vlasov was the strongest in the Ukraine, having 313 T-34 and 101 KV among its total of 979 tanks. It reacted slowly to orders and failed to assemble for attack. The most it achieved was on 28 June, when it secured the retreat of 15th Mechanized Corps from the pushing German infantry. Whilst not attacking or being attacked, the corps reported it retained no more than 6 per cent of its KV tanks, 12 per cent of its T-34 tanks, and 4 per cent of its light tanks on 12 July. Besides these, there were no more notable Soviet counter-attacks in this battle. 22nd Mechanized Corps, 41st Tank Division Thirty-one of this unit's KV tanks, its most effective fighting element, blundered into swampy terrain and were lost. Decision, indecision, and confusion of command: the historical debate The effect of the hesitation and confusion of command on the 27th of June on the outcome of the battle and the German attack into Ukraine is hard to determine. When the Soviet forces took Dubno and cut off the leading edge of the main German attack, Kirponos thought that the same German attack threatened to outflank and encircle the Soviet forces attacking from the south. This led him to order a halt to the offensive and a general retreat in order to rationalize (shorten) his front line, "so as to prevent the enemy tank groupings from penetrating into the rear of the 6th and 26th Armies", according to H. Baghramyan. After a debate with the Front commander and his staff, Georgy Zhukov quickly had these orders countermanded; orders for a renewed attack were issued two hours later. This led to even more of the confusion that was symptomatic of the Soviet command at the Battle of Brody. Rokossovsky, who was in command of the 9th Mechanized Corps attacking from the north, simply balked at these new orders, stating that "we had once again received an order to counter-attack. However, the enemy outnumbered us to such a degree, that I took on the personal responsibility of ordering a halt to the counteroffensive and to meet the enemy in prepared defences". Meanwhile, Ryabyshev commanding the 8th Mechanized Corps to the south, complied with the order and remounted the attack. Ryabyshev seems to take the position held by Zhukov at the