 "Stavka" assigned to the forces of the Front the mission of pressing home the attack on the Kaunas axis not later than 1–2 August, through assaults by the 39th Army together with the 5th Guards Tank Army from the north, and the 5th and 33rd Armies from the south to occupy Kaunas – the most important defensive position on the approaches to East Prussia.The plan called for the Red Army troops to advance to the borders of East Prussia by the 10 August and assume a defensive configuration in preparation for advancing into East Prussia.As with the parallel defence against the Belostock Offensive to the south, Model concentrated on a holding / delaying action using the few units available to him.