 On 29 June , Hitler , through the Commander @-@ in @-@ Chief of the German Army Walther von Brauchitsch , instructed the commander of Army Group Center Fedor von Bock to halt the advance of his panzers until the infantry formations liquidating the pockets catch up . But the commander of the 2nd Panzer Group Heinz Guderian , with the tacit support of Fedor von Bock and the chief of OKH Franz Halder , ignored the instruction and attacked on eastward towards Bobruisk , albeit reporting the advance as a reconnaissance @-@ in @-@ force . He also personally conducted an aerial inspection of the Minsk @-@ Białystok pocket on 30 June and concluded that his panzer group was not needed to contain it , since Hermann Hoth 's 3rd Panzer Group was already involved in the Minsk pocket . On the same day , some of the infantry corps of the 9th and 4th Armies , having sufficiently liquidated the Białystok pocket , resumed their march eastward to catch up with the panzer groups . On 1 July , Fedor von Bock ordered the panzer groups to resume their full offensive eastward on the morning of 3 July . But Brauchitsch , upholding Hitler 's instruction , and Halder , unwillingly going along with it , opposed Bock 's order . However , Bock insisted on the order by stating that it would be flatly irresponsible to reverse orders already issued . The panzer groups , however , resumed their offensive on 2 July before the infantry formations had sufficiently caught up . 
